2. 外语
  3. In this experiment, they were wakened several times during the night, and asked to report what they ______.

In this experiment, they were wakened several times during the night, and asked to report what they ______.

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问题 In this experiment, they were wakened several times during the night, and asked to report what they ______.
选项 A、have just been dreaming
B、had just been dreaming
C、are just dreaming
D、had just dreamt
答案B
解析 动词时态。描述过去某个时间点前一直持续的动作，应到使用过去完成进行时。
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