I didn't hear from him

I didn't hear from him I didn't hear( )you for a long timeA.from B.of C.to D./ 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? thought I didn't hear [ ],I heard [ ] himA;about,fromB;about,ofC;from,ofD;about,/必须有理由 I didn't mean you to hear it为什么这要用didn't而不是I don't I didn't get that means .A.I didn't take that B.I didn't hear what you said I didn’t hear _____ you said just now. I didn’t hear _____ you said just now. I didn't hear him_(talk)to others loudly Sorry I didn't hear you c____ please saySorry I didn't hear you c____ please say it again 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 hear from him for a long time,so I went to see him by ( )a.me b.myself c.him d.himself 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. Long time I didn't hear from you.改一些句子Long time I didn't hear from you.Although my campus life is busy,I had a happy time when I was in my dormitory.修改意见:注意时态!Time goes by,I have been lost touch with you about two mouths whe 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 We didn;t hear from his letter for a long time.这题怎么改错,为什么? I didn't answer the phone( )I didn't hear it ringA if B unless C although D because i haven't heard from her for a long time什么时态?haven't heard 换成didn't heard可以吗/用don't hear或者am not hearing 为什么?