Завтра пишу экзамен по . образец письма найти не могу, с ошибками, если что (запятые - тоже ошибка) 15, world street, chelny russia 04.06.15 dear simon, thank you for your letter. i was glad to ger it from you. i'm sorry, i was snowed under with exams and couldn't answer earlier. (основная часть) with best wishes, paul
2) Не стоит говорить I was glad to get letter --- лучше сказать I was glad to recieve yout last letter
3) Лучше сказать I am sorry I havent written so long for you because I was very busy with preparing to my exams
4) Просто Best wishes (без with)