单选题
In this experiment, they are wakened several times during the night and asked to report what they _____.无
A、
had just been dreaming
B、
have just been dreaming
C、
are just dreaming
D、
had just dreamt
【正确答案】
B
【答案解析】
句意： 在这个试验中， 他们一个晚上被叫醒几次， 要求说出他们刚刚在做什么梦。 dream从过去某时开始延续到被叫醒这一现在动作之前， 故用现在完成进行时。
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