题目内容
18.In this experiment, they are woken up several times during the night, and asked to report what they _______.
| A.are dreaming | B.had dreamt |
| C.had been dreaming | D.have been dreaming |
D
略
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题目内容
| A.are dreaming | B.had dreamt |
| C.had been dreaming | D.have been dreaming |