_______ your letter,I would have started ff two days ago.AIf

_______ your letter,I would have started ff two days ago.AIf ____ your letter,I would have started two days ago.A If I re Had I receivd your letter,I would have written back two days I started to have a headache two days ago.-How long did you 改错I have got a letter from my brother since two days ago. Lily ,it started about two days ago I would like to teply ( ) your letter in three days It started ｛two days ago｝(对划线部分提问） I have started to study English since two years ago 怎么改 i went home two days ago现在完成时 I have been reading the interesting book (since two days ago I would have done the walking out three days ago翻译谢谢