初一写给英语老师的一封信（精彩20篇）

Among all the modern inventions，laptop is my favorite one.I think it is the

most amazinginvention in the 21 st century.Laptops are light and small.They are

easy to carry.With alaptop，we can work，study and entertain everywhere.A laptop

can get to the Internetoutside，which enables us to get the latest information

whenever we want.Using a laptop，ICan keep in touch with my friends and family

through e-mails and QQ at any time and in anyplace.I think in the

future，everybody will have his or her own laptop.

亲爱的张后宇老师：

一转眼，我在这个陌生的学校生活了十三天，从刚来这里的不情愿瞬间变成了依依不舍，我发现了原来这个学校有太多太多值得我留恋的地方，这里的老师十分和蔼，这里的同学幽默有趣，我打心底里喜欢上了这个著名的杭州外国语学校了。

刚迈进学校大门时，我的心里一直在想：“这里的老师会不会很严厉?老师会体罚学生吗?当我们不听话时老师会请家长吗?这种种猜想在我脑海里一遍又一遍地重复着。当我上完一天的课程后，我顿时觉得一切似乎是神圣的，老师一点也不凶，反而像我们的朋友一样对待我们。我特别喜欢上您的课，因为我觉得您上的课就像在听别人讲故事一样，生动有趣，有声有色，现在离回家还有几天时间，我真希望时间可以倒流，让我再回到7月10日那天，那么，我还有十五天在这里生活，如果有机会，我一定还要来杭外参加夏令营，我永远不会忘记我在这里的美好回忆，更不会忘记曾经教过我的老师，那句句叮咛，那声声嘱咐，一直在我的耳边回响，张老师，希望你别忘记您有这么一个学生，曾经把您当作自己偶像的学生，我也会像您说的那样好好学习，我也不会您失望的，我会给您写信，也会在QQ上与您聊天，我们可以这样保持联系吗?教过我的所有老师，我真的特别特别特别特别(无数个特别)为什么会这么迷恋您呢?也许是因为您年轻，也许是因为您像姐姐，反正不管怎么样我就是喜欢您，别人不能阻拦我!否则我要他们好玩。(嘻嘻，张老师我就是这样有一点点野蛮的性格，请别见怪哦!)

亲爱的张老师，如果您可以当我姐姐的话，那我就高兴得疯掉了!!!现在是白天吗?哦，那我就是白日做梦了!bye bye，张老师!眼睛酸了吧，呵呵!

写信人：

日期：

I have a good plan for this weekend. Actually, I bought three concert

tickets for this coming Sunday evening, and I will enjoy the music with my

parents. It will be performed by a String Quartet from Denmark, called

Nightingale. Since I have learned to play the piano and am a classical music

fan, I cannot wait any longer for this musical activity this weekend. It would

be brilliant, if today were Sunday.

This is our classroom, which is a nice big room.The windows are big and the

walls are white. There is a blackboard on the front wall. On the back wall there

is a map, which is a map of China.In front of the blackboard there is a big

desk, it is for the teacher.There are forty small desks and chairs in the room.

They are for us studens. Whats on the teachers desk? There are some

flowers.

【参考翻译】

这是我们的教室,这是一个漂亮的大房间。窗户大,墙壁是白色的。在前面的墙上有一块黑板。在后面的墙上有一张地图,这是一张中国地图。在黑板前面有一个大桌子,是老师的讲台。有四十个小桌子和椅子在房间里。他们是为我们学生。老师的桌子上是什么?那是一些花。

I was just a little girl five years old. At that age, I did nothing. Every

morning I would get up early and start dressing up to the playground to play. I

have no friends, but I am curious that I could make some by sharing things. And

so I took some bread from the cupboard, took a bottle of milk and ran to the

playground.

There were many children playing there: Some were playing hide and seek,

some were playing tag; some were playing catch, some were playing toys; some

were building sand castle… I ran to the sand pile, there I met some girls

building sand castles. I asked, “May I sit down here, please?” “Suit yourself

coward!” shouted the girls rudely at me.

And so I sat down and began to play. After I had finished half my sand

castle, I heard the girls say, “I am so hungry, but I don’t have money to buy

thing,” and then it hit me; “I have some bread to share with them.” And so I

took some bread out of my bag, and said, “Here, have some bread.” When the girls

took the bread they ate it and said, “Well, well; looks like we have a hero. But

I am not going to be your friend!”

I had spread some jam on my bread and took another piece, put it on top and

started to eat. When I had finished the last bite, I put the rest in my bag, and

went away. I was very sad that sharing things didn’t help me make friends; I

shall have to think of another. After ten days I have thought of another way,

and so started out to the fields. There sat a girl shepherd sitting next a rock.

Now it all happened that this girl was the one that had helped me with

everything I have.

I quietly took out a piece of paper, and wrote some words: I haven’t seen

you for a long time, and so have decided to write you this. I want to thank you

for all you have done for me in the past few years, what do you want me to do

you for this month? After I had finished writing the last words, I put it inside

an envelope; licked the stamp, and stuck in on the right corner of the envelope;

at last closed the top.

After that, I ran to her mail box and put it inside, and then went home.

After a few days I have found a letter from the shepherd girl in my mailbox. I

carefully opened it, and in it was a piece of paper; on the paper were some

words, these are the words: I am very grateful for your kindness, but really I

have much work to do in the fields; If you come here and be a shepherd with me;

then that is the most best thing you could do for me. After reading this, I

thought to myself: I am alone so I guess I could be a shepherd. And so I told my

parents, and set off.

Finally, I had arrived; the shepherd girl came to meet me. “Now I am you

friend Margaret.” said the shepherd girl to me.

Dear Parents,

The New Year of 20__ is approaching. First of all, thank you for your understanding and support of our school.

On the occasion of the coming New Year, I would like to extend my warmest greetings to you and yours. During the holidays, school leaders and teachers are very concerned about your childrens learning and safety during the holidays. Therefore, the school hopes that parents will work closely with the school on students learning and safety issues to spend a safe and meaningful New Years Day together. Therefore, the school puts forward the following instructions and requirements to you, I hope you will actively cooperate and fulfill the responsibility of guardianship.

Warm tips:

1. Vacation time: January 1 -- January 3, 20__. Students will go back to school at 4:15 PM on December 31, and all students will return to school before 7:30 am on January 4 (Sunday).

2. During the holiday, please urge your children to get enough sleep, take exercise, reduce pressure and have enough nutrition; Observe good personal hygiene and wash hands frequently with soap and water; Avoid going to crowded or dirty places; Keep the room well ventilated to ensure good ventilation.

3. During holidays, when you take your children to visit relatives and friends, play your own role as an example, educate your children, observe etiquette, and strive to be "civilized citizens". At the same time pay attention to traffic safety, especially travel safety, education children not to go out at night party drinking, fighting, lighting fires, play with fire, to prevent the occurrence of accidental injuries; In addition, we should pay attention to the safety and reasonable diet of gas and electricity at home, so as to prevent the occurrence of overeating, food poisoning and other events harmful to health.

4. Educate children to watch TV at home in moderation, do not enter Internet cafes and other entertainment places, warned the children not to get acquainted with the society at will bad youth.

5. Life is full of education, entertainment and learning. While having a pleasant holiday, let the children help their parents to do something within their power and cultivate working habits. Urge children to complete the holiday homework assigned by teachers, arrange time reasonably, and actively prepare and review lessons.

6. Communicate more with your children during holidays, pay more attention to their physical and mental health, and urge them to strengthen their review work so that they can achieve excellent results in the final examination.

7. In the middle of winter, when the weather is cold, please remind your children to add clothes in time to prevent colds and infectious diseases.

The year 20__ is spent in our full of joy and harvest, and the year 20__ is a year full of hope. All the staff of Huangling Middle School sincerely wish you and your family more happiness and happiness.

I hope you have a most happy and prosperous New Year.

As time goes by, people are being busier and busier with working, such as

signing their contracts, meeting their customers, drawing up the balance sheets

of their companies and so on. In this circumstance, people forget our most

excellent skill--smile.

随着时间的推移，人们在工作上越来越忙，如签订合同，见客户，制定企业资产负债表等。在这种情况下，人们忘记了我们最优秀的技能——微笑。

There are a great many kinds of power of smile. First of all, common touch

can be showed by a kind smile. Imagine that you go to a company to attend an

audition. With a confident smile, you are more likely to answer the question

better. Furthermore, smile can eliminate angry. As a philosopher said, smile

before you begin to get angry. The last but not the least, it reflects calm of a

person when he is in danger or in trouble.

微笑的力量很多。首先，微笑可以作为平易近人的一种表现。想象一下，你去一个公司参加面试。带着自信的微笑，你有可能会更好地回答问题。此外，微笑可以消除愤怒。一个哲学家说过，在你开始生气之前微笑。最后但并非最不重要的，当一个人处于危险或者麻烦的时候，微笑反映了一个人的镇定。

The beneficial aspects cannot be stated completely in this passage. But you

can understand its power when you smile.

微笑的好处在这里是无法一一列举的。但是，在你微笑的时候你可以理解它的力量。

My sister is a lovely girl. She has a nice English Name, “Elsa”. She is

very clever and pretty. She is eight years old so she is old enough to go to

school. This year, she tells me that she is a student now.

One day, my aunt took her to my home. My aunt had something important to do

and had no time to look after her, so she told me to take care of her. First, I

played with her for a short time. I thought the game was boring, so I taught her

some polite words, such as hello, please, sorry… She listened carefully.

Suddenly, there was a person knocking on the door. Elsa went to the door to open

it. Afterwards, she was polite to say, “Please come in.”

Do you think she is lovely and clever? I think you will say, “Yes, I

do.”

My name is WangLei . My birthday is on August 11. We have a good

birthday party. My mother makes a birthday cake for me. It’s big and tasty. My

father give me a football. Because I like playing football. Many friends come to

my home .We are very happy. They give me a lot of presents and some birthday

cards. We sing and dance. We eat food and fruit. We play games together. We have

a good

time.

【参考翻译】

我的名字叫王磊。我的生日是8月11日。我们有一个很好的生日聚会。我妈妈使我一个生日蛋糕。它是又大又好吃。我父亲给我一个足球。因为我喜欢踢足球。很多朋友来我家。我们非常高兴。他们给了我很多的礼物和一些生日贺卡。我们唱歌跳舞。我们吃的食物和水果。我们一起玩游戏。我们有一个美好的时光。

Dear Lucy,

I am writing to express my sincere thanks for your beautiful flowers. I?

like you to know how much your flowers meant to me. You have a positive genius

for selecting the right gift. I not only enjoyed your flowers, but also the

delicate vase. I shall ever remember this gift as one of the most precious

things in my life.

I will not be very busy the following days. I hope to have the opportunity

of reciprocating. Would you kindly let me know what time you are at

convenience?

I will feel very happy if you have time to make me a call. How nice it

would be to see you again and I am looking forward to seeing you next time!

I repeat my thanks again for your lovely flowers. Please give my kind

regards to your family.

Yours truly,

Huck

Dear Ms.vvv,

I write this letter because I want to talk to you about thepunishment of copying the sentences on the English book.

I don’t think this punishment is fair.

Firstly, I am quite sure that I did complete my homework before. Itis a weekend assignment. Li Peiqi goes to myhouse every Friday. We do our homework together. She can prove thatI did it exactly.

Secondly, I remembered that I handed in the paper.

Thirdly, I don’t know the rule of punishment before. Besides, Idon’t know my paper disappear.

Last, I still like you so much while I would like you to know thetruth.

Love,

Dora

When the summer holiday came， my cousin and I went to Huamei International

Schooland joined the English and Art Camp.

The camp lasted for three weeks. We had many interesting activities. I

enjoyed them so much， and I was always happy.

I made more new friends there too. I like studying and playing with them

very much and I think they were very friendly.

Our classroom， bedroom and canteen were all very comfortable. They are not

only bright， but also tidy and clean. The food in the canteen was also very

delicious and healthy. I enjoyed the school food a lot. The teachers loved us

very much and they took good care of us.

I like the life in Huamei International School.

Dear Jim,

Last Sunday my classmates and I went to Xiangshan Park.

We met at 7 oclock at the school gate. The weather in Beijing that day was

great. At around 8 oclock, we arrived at Xiangshan Park. There is a high tree

on the bottom of the hill. We had a party and played games under the tree. Then

we climbed to the top of Xiangshan Mountain. It was not very difficult for us to

do it. Next, we had lunch at the top of the hill. It was delicious. After lunch,

we saw some birds. They were friendly. And we saw a whole picture of Beijing.

"What a beautiful city!" I said. At that moment, we all felt so proud. I live in

Beijing now. The 2008 Olympic games was held here.

I hope you can visit to Beijing in the future and I am sure you’ll like

here.

Best wishes.

Sincerely yours,

Li Ming

She has two cats. One cat is black. The other cat is white. The black cat’s

name is Blacky. The white cat’s name is Whitey. She feeds her cats. She puts

their food in dishes. She puts each dish on the floor. She calls her cats. They

come into the kitchen. They eat the food.

Dear Parents,

Hello!

According to The General Office of the State Councils Notice on The Arrangement of Some Holidays in 2019 (No. 15 [2018] of The State Council) and the requirements of Longhua Education Bureaus Notice on the Arrangement of The New Years Day Holiday in 2019, the arrangement of the "New Years Day" holiday in our school is as follows:

One, the overall arrangement of the holiday

New Years Day: December 30 - January 1 holiday, a total of three days. Teachers will return to work on December 29, 2018, and students will return to class on Wednesday, January 2, 2018.

(Note: Class on Tuesday, Week 18, on December 28; Classes will be held on Friday of the 17th week on December 29th. Cadres and teachers on duty will be arranged according to the corresponding weekly schedule. Evening self-study will be held on January 1st and Sunday.

Ii. Matters needing attention during holidays for students and parents

1. Parents should guide their children to make reasonable holiday plans and spend time with them watching TV programs and news reports about New Years Day, so as to know about folk customs and get familiar with traditional culture; To understand national achievements and enhance patriotic feelings; We should expand our cultural horizon and cultivate our national feelings.

2. Parents should guide their children to read more beneficial extra-curricular reading materials. While enjoying the holidays, they should also urge their children to finish their homework on time and take part in more labor and practical activities. Have a fulfilling, happy and meaningful vacation.

Parents should teach their children to obey the law and strictly observe social ethics. Please the students to consciously resist the allure of the social bad molecular, do not participate in the feudal superstition, not watching, not all, pay attention to language civilization, not to take part in illegal activities, maintain the normal social order, do a love life, have ideal and faith, good "world outlook, the outlook on life, values," the beauty of youth.

4. Parents should teach their children to pay attention to safety and pay attention to reasonable diet. Safety education should be conducted "year after year, month after month and day after day" to ensure the safety of students. Students should be familiar with the prevention of drowning, electric shock, fire, typhoon, traffic accidents, dangerous action at height and other safety knowledge, prevention of overeating and food poisoning and other harm to health, with knowledge to enrich their own, with the ability to protect themselves, safely spend the holiday.

5. Please educate the children to do a good job in epidemic prevention and control. Students should avoid going to crowded places or staying in stuffy rooms for a long time. In particular, do not go to dance halls, bars, Internet cafes and other entertainment places, learn to love and protect their physical and mental health, to be an excellent little citizen to let teachers rest assured, parents happy.

6. To live a happy life, start from safe work. Dear parents, we firmly believe that as long as we work together, the child will grow up safely and healthily. Dear students, a better life needs your participation and creation, so that your efforts can lighten your beautiful life.

敬爱的许老师：

您好!

您教了我们三年级语文，现在又开始教四年级语文。我非常感激您。因为是您把我们从三年级语文带到四年级，在三年级期末考试时，全班以优异的成绩通过，语文竟是全年级第二名，所以我非常感激您。我非常感激您。因为您不仅是老师，还是校长，校长总是比老师忙碌的要多得多，要检查大扫除，又要检查队会课情况，还要帮我们批改作业，还要准备教案……可是许校长您还是放弃自己的休息时间，从忙碌中抽出时间来，争着要占用中午的时间，用中午时间帮我们订正作业，誊写作文、写中午作业……所以我要感谢您。

我非常感激您。因为您是我们语文学习的引导者，用渊博的知识和创作性的劳动，帮助我们掌握学习语文的技巧和方法，把语文学习金钥匙支配到我们的手里，指导我们学习语文。许老师您像严冬中的炭火，酷暑里的浓阳，湍流中的绊脚石，雾海中的航标灯。您用知识的甘露孕育鲜美的硕果，用心灵的清泉滋润理想的花朵，老师用知识在语文学海中遨游，让我们知识大丰收。您“捧着一颗心来，不带半根草去”这是您最常见的原则，诲人不倦，无私奉献精神体现。许老师您的爱是超凡脱俗的，是无私的，这种爱给了我们温暖和力量，促使我们每一个学生不断实现自己的追求，达到理想的彼岸。老师为我们上课批改作业，付出了许多宝贵的时间与精力。教学还是一种细致的脑力工作，尊重老师，努力学习，奋发向上，是一种美好品质。我会以最好的成绩报答您。

您的学生：__

20_年_月_日

Where There is Life, There is Music

What is music, no one can explain.

Just imagine for a moment that you are sitting in a magnificent concert

hall. The conductor waves his shiny baton with a graceful swing through the air.

A beautiful melody floats slowly around you

You sit quietly with your eyes shut, your heart open. The delicate vibratos

of the violins carry you to a mood of heavenly bliss. An airy solo of the flute

draws you to the imagination, the notes flow like some jumping swallows dancing

and singing calling for the coming of Spring.

I like music from my childhood. My father often says when I was a baby I

would never go to sleep without soft, beautiful lullabies crooning around my

ears . Now music is a part of my life. When I feel tired, disappointed or in low

spirits, I usually turn to music. Music, nothing but only music can have so

wonderful an effect on my heart, on my pond of feeling.

Music comes with us. Where there is life, there is music. Where there is

music, there is hope. It lies in everyday life, in everyone’s life, in

everything we see, in everything we hear-- in the rhythm of the sea, in the

whisper of a gentle wind, in the melody of a bird’s singing, in the harmony of

village chimes. You can hear music wherever you may go . A man who doesn’t know

music will lose half the world. A nation that pays little or no attention to

music will be a sad nation. A world without music would be the one for the dead

and devils.

So dear friends, let’s open our arms to embrace music and enjoy it

throughout our lives. Love music and love life.

Thank you.

哪里有生活，哪里就有音乐

音乐是什么，无人能解释清楚。

想象此刻你正坐在富丽堂皇的音乐大厅里，乐队指挥手中的闪闪发亮的指挥棒在空中优雅的舞动。悠扬悦耳的音调飘扬在你的周围。

静静地闭上双眼，敞开心扉。小提琴精妙的振颤会把你带入到天堂祈福的心境;大提琴微弱低沉的叹息会使你想起一位老人在风中散步，沉浸在童年时代宁静和挚爱的回忆中;长笛轻快的独奏使你从想象中猛醒;流畅的音符像一群飞舞歌唱的燕子在呼唤春天的来临。

从童年时代音乐就是我的挚爱。父亲经常说，我在襁褓中，没有温柔甜美的摇篮曲在耳边低吟，就难以入眠。现在音乐是我生活的一部分。每当我感到疲倦，失望或情绪不振时，我就求助于音乐。音乐，除了音乐，没有什么对我的身心和情感有如此奇妙的影响。

音乐与我们同在，哪里有生活，哪里就有音乐;哪里有音乐，哪里就有希望。它存在于每个人的日常生活，存在于我们耳闻目睹的一切事物之中;存在于海的波涛，清风细语，悦耳鸟鸣，和谐的乡村钟声之中;无论你身在何处，都会听到音乐。一个不了解音乐的人将失去半个世界。一个不重视音乐的民族将是一个悲哀的民族。一个没有音乐的世界将是逝者和恶人生存的世界。

亲爱的朋友，让我们伸开双臂去拥抱音乐，在人生中享受音乐的乐趣。热爱音乐，热爱生活。

谢谢大家。

My name is Yao Yuru, this year twelve years old, is a Gemini girl, is also

the Nanchangthird day seven class of students.

I am a healthy girl, because I have a good eating habit. I was a

vegetarian, I often eatsalad lettuce silk, carrot stew and fried cabbage. The

fruit is very healthy food. I likeeat star fruit, cherry, peach, grape and

kiwifruit. But my favorite fruit is blueberry.

I like sports. I like to play badminton play tennis, because they are very

easy and interesting. My favorite sport is playing basketball. Oh, "the little

dwarf reincarnation" I just love basketball this movement, this is baffled.

Dont look at me is a small but girl,last visit to his alma mater, I play

basketball with a group of old classmates with a university, but I grabbed a few

times high school seniors ball! For me is that even the "three ball"

"gatekeeper" is what all dont know beginners, but I am very proud! For my

height, playing basketball is very difficult, but fortunately the pain in music,

it is veryuseful and interesting. Why useful? I wonder if you have not heard of,

plenty of exercise can promote bone growth, especially for jumping movement!

You are a healthy girl? If not, please try to let oneself become a

healthier!

假设你叫李红，请你给Lucy写一封信，向她介绍你的家庭情况和学校情况，60词以上。

X. One possible version：

May 23th， 2005

Dear Mr Qiu，

Thank you so much for teaching me so well. You are very kind to me. During the last three years I have learnt a lot of knowledge from you. I’ll never forget you. I’ll keep on studying hard as usual in the senior middle school.

Wish you success in the future teaching work. Wish you a healthy body for ever. And wish you a happy life in the future. And I also hope that everything will go well in our school！ Best wishes for you and for our school！

Your student，

Li Hong

[初一英语上册作文写给Lucy的一封信

Dear Mrs. Shi,

hello. Must first thank you to be willing very much to arrive at our school, teaches us business English this curriculum. To your first impression is childish, very kind feeling. After knowing your study experience, increased to your sentiment of worship.Because Fudan Universitys world economics specialty is my dream, even if forever possibly could not realize. In fact,I really want to see your study life at ordinary times, I want to know what kind of habits accomplished thus excellent of you.

This semester, we got the subject of 《Offer&Counter-Offer》 , I also remember until now our group comes on stage performances scene, I can only use two words to describe: bad and awkward. Because we do not have well the preparation, cause then the situation of the mess. On the PPT content is directly from on-line duplication and glue. But takes me who lectures not to have well the preparation, is simply is on site to display. At that time stood on the stage feeling is really very bad, I only wanted a bit faster to finish lecture, hurry to leave stage. That experience told me “the full preparation” importance.

In your class, I also have another unforgettable experience, is some time roll-call. You didn’t call everybody,when you selected Wang Kaiya, I helped her to call, which knew that you called me to raise hand to look to you. Afterward you selected unexpectedly to mine name. I am really suspected very much that you thought I am not Wang Kaiya, therefore has turned head selects the Han Xue name again, because of mine student number in the front of Wang Kaiya. Afterward one time, you were called each group of group leaders name, I helped Wang Kaiya to call once more, therefore I thought that perhaps you regarded me Wang Kaiya.Ha-ha, this merely is my guess!

On your class we feel relaxed, we don’t have the tedious knowledge spot and heavy homework. Some are only your speaking with confidence with each kind of small story, you used your personal experience to teach our some truths.

This semester, my impression quite deep is “transportation” this chapter. I have learned the transport expense computing mode, and in the transportation process the risk undertakes the way. The different transport mode and the method of settling accounts, will have the dissimilar transport expense and the risk. Actually in “the international trade”, I has also studied some international shippings knowledge, but in yours class, I studied each technical expression in English. For freight,direct vessel,entir voyage and so on.

Oh, Oh, I am really could not write again about this semester’s studies and thought, because spoke the truth, I very few listened earnestly, especially in the university. Therefore teacher I’m sorry very much, this semesters work I stopped. Wishes you and your family member has the happiness content life!

Respect leadership and colleagues:You are good!

I due to personal reasons， quit OA development engineer position， leaving

our __ group。

Thanks to the __ Group I bring opportunities and challenges!

Thanks to all the leaders of my concern and trust!

Thanks to all my colleagues on the work support and help!

To __ this huge enterprise， I think I was lucky， here to learn a lot，

feeling a lot， and last year right out of high school， has matured a lot 。。。

。。。

In __ year， for me is the most important thing in my life experience。 Here

I have experienced the defeat， also achieved success， there have been depressed，

there have been happy。 Failure is the imprint is engraved on my heart。， it will

bee an alarm， a cornerstone to goad me unceasingly enterprising; achievement is

another person happy， they will bees a new target， show me the way。

As a technician， I yearned to see their increasingly adept， also understand

__ such environment will certainly be able to provide experience their own

opportunities， just as we can not pletely predict natural disasters， some

objective contradiction I dont know how to solve， how to avoid， a single

selected topic， one of two， will be homes。

There is no all feast， Kuwata sea， between transform is natural， for

colleagues only bleand expectation， blemy colleagues all the best， and we look

forward to __ everything is going smoothly!

A letter of resignation letter of thanks