What could be heard when they set off?什么意思

What could be heard when they set off?什么意思 What frightened us most of all was that not a sound could be heard.翻译： What frightened us most of all was that not a sound could be heard..翻译： The most frightening thing of all was that not a sound could be heard这句话中was后为什么不用what, The most frightening thing of all was that not a sound could be heard这句话中was后为什么不用what. Though the sound could be heard clearly这里的be是什么用法 The teacher spoke loudly _ A.so that he could be heard clearer B.so as to be heard much clearerThe teacher spoke loudly _A.so that he could be heard clearer B.so as to be heard much clearer C.in order that he could be heard much more clearly D.so tha What he said had no other meaning.It is simple than you _______（imagine）I remember there's a train at 6:30,but you'd better ______Mr Hu spoke loudly ______ he could be heard clearly Though the sound could be heard clearly ,it took me a long time to react.句子成分 the noise of desk being opened and closed could be heard outside the classroom. if you could be anything,what would you be? 一道英语选择题,请解释it was so quiet in the classroom that a needle _to drop onto the floor A .could hear B .was to be heard C .could have been heard D .must be heard I heard that it is very easy to be happy,as could be diluted with time going on There was so much noise that the speaker could not make himself ____三星笔试P35页A.hear B.heard C hearing D be heard为什么 1.You are saying that everyone should be equal,and this is_____ I disagree.A.why B.where C.what D.how2.Comrade Wang is to give us a talk on _____ he saw and heard in Britain.A .what B.all what C.that D.which3.He said that he was young ______ ha could What could the semantics around that one be? could be trusted to know what they were He wondered what excuse be could make this time