求求各位帮我写四篇英语作文吧

1）
Dear Mr. and Mrs. Johnson,
I’m writing to you from my home in China. I returned home safe and sound. When I think of the wonderful two weeks I spent in Australia, I just can’t help thinking of both of you. It was so kind of you to have provided everything to make my staying there such a happy and lucky experience. I’ve learned so much, not only English but also culture. And I really enjoyed a great deal the fun and laughter we shared with each other. Thank you very much. I’ll always remember this trip as well as your kindness. I’ll keep in touch and write to you later. Please take care!
Yours，
*****
2）
Dear editor，
An American girl named Mary is looking for a pen pal in our school. Mary is interested in sports, dance and country music. She is now working in CCTV2 English learning program " Life in America", which helps Chinese students to learn more about America and to improve their English. If you want to contact her, please write to "World Youth" magazine.Thank you.
sincerely ，
******
3）就直译吧，一个纲，自己往里面填句子，是文章变得更完整
Aten-minute break is necessary for the students as it is a good way to refresh them. But one must take good advantage of the ten minutes or the break would make you feel more exhausted.
4）
Dear Jack,
Thanks for your last letter.I am very happy to tell you about my class and my studies
Sam, for now i learn everyday, all enjoyed it. i have a very responsible, a loving, a good teacher, in the classroom, we all like the teacher, i have a good student, learning whenever i have not understand, they will always help me, i had a full, sam wish you a day may come, china, i'll introduce you to them. i wish you happy！
Yours，
*******

不难，你是几年级的学生啊

很难吗，要学会独立。可以用用金山词霸，背背范文的开头和结尾，多用几个词组，同一个意思用不同的单词表达，