In this experiment,they are woken up several times during the night,and asked to report what they_.A.had just been dreaming B.are just dreaming C.have just been dreaming D.had just dreamt怎么不能选D
问题描述：
In this experiment,they are woken up several times during the night,and asked to report what they_.
A.had just been dreaming B.are just dreaming C.have just been dreaming D.had just dreamt
怎么不能选D
答
句子里没有过去式 不用过去完成时
答
report 动词，后面what they ……是宾语从句，宾语从句时态随前面动词定。所以直接have 就可以了，而且意思是他们刚刚正在梦什么……而不是他们已经梦到什么
答
因为整句句子时态是现在进行时,之前当然是现在完成时.asked只是表示被动语态,跟时态无关.
答
这里的asked是被动，表示被问到刚才梦到什么了，句子中没有过去式当然就不用过去式了。所以选C