.In this experiment, they are woken up several times during the night, and asked to report what they＿＿＿＿.
A．had just been dreamingB．a(chǎn)re just dreaming
C．have just been dreamingD．had just dreamt
C
dream是從過去某時開始一延續(xù)到are woken up...and asked to report...這一現(xiàn)在動作之前的動作，故用現(xiàn)在完成進行時。
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