We didn;t hear from his letter for a long time.这题怎么改错,为什么?

I didn't hear from him We didn;t hear from his letter for a long time.这题怎么改错,为什么? I_____ Mr Smith since he moved to Shanghai with his father.A.didn't from B.didn't hear from C won't hear from D.haven't heard from I didn't hear( )you for a long timeA.from B.of C.to D./ I sen you He didn't sing the song we want to hear We shouted at him,but he didn’t hear.(改错)如题 i haven't heard from her for a long time什么时态?haven't heard 换成didn't hear、don't hear或者am not hearing 为什么? I have (hear) of him.We often hear Jay,but we didm't hear Him.A,of,from B,from,of C,abou Remember me?What?Louder didn't hear! thought I didn't hear [ ],I heard [ ] himA;about,fromB;about,ofC;from,ofD;about,/必须有理由 2.Until then,his family _______ from him for six months.A) didn’t hear B) hasn’t been hearingC) hasn’t heard D) hadn’t heard Until then,his family _______ from him for six months.A) didn’t hear B) hasn’t been hearingC) hadn’t heard D) hasn’t heard 21.－Why didn' t you answer the phone this afternoon?－We didn' t hear it.I21.－Why didn' t you answer the phone this afternoon?－We didn' t hear it.I was in the garden and Mum __________ a shower.[ A ] has had [ B ] had[ C ] had been having [ D My uncle said that he would telephone but I ----from him so far A didn't hear B hadn't heard C haven't heard D won't hear 为什么选C 不选B I didn't mean you to hear it为什么这要用didn't而不是I don't 改英语句子,同义句 I didn't hear from my mother.是 “同义句”!还有 He replied to the engineer. I didn't hear from him for a long time,so I went to see him by ( )a.me b.myself c.him d.himself I didn’t hear _____ you said just now.