Олег VVдобавил комментарий 4 years ago
I'm sorry for not writing you for a long time, I've been busy doing my homework.
прости, что давно не писала, я была занята уроками
Sorry I haven't written in so long - I've been busy with my studies/with schoolwork.
I'm sorry for not writing you for a long time, I've been busy doing my homework.
for so long неправильно?
тоже можно
I was busy