I heard he ------- (teach)in your school for five years.-Oh,he left our school last year.老师上课讲是填taught,为什么呢?不是过去完成时吗?急,答得好的有奖励

I heard he is singing.是病句么?能不能改为I heard that he is singing. He was heard() out (go)When I was reading a book.he was heard () out.(go) At last he heard what i _____(say ) he was heard singing=he was heard to sing?dictionary tells us like this,I don't know why I heard the news on the radio that he also heard of.这句话中的that引导的是什么从句 I heard him singing when I pass his room.改被动（主语为he） I was waiting for elevator when I heard he call () me.for/after/with/to The news that i heard that he was killed is sorry 能转换成 I heard the news that he was killed is sorry. ______it said that he is not to be trusted A.Often I heard B.Often did I hear C.Often have I heard I heard he was singing in the next room.是什么从句? I haven't heard from him( )he went abroadA when D since 为什么选D I heard a moise in my living room ,he said(将句子改成间接引语) he said ,i haven't heard from my parents these days.变成间接引语 i( ) from him since he leftA didn't receiveB haven't gotC haven't heard为什么? He is the person.I have heard about him并句 He is the man from him I heard the news,改错 I have never heard him compain.he is always willing to help怎么样翻译 I have never heard him compain.he is always willing to help怎么样翻译