题目内容
27. —Did you watch the opening ceremony of Winter Olympit Games?.
一No,I didn't. I on the Internet at that time.
A. study B. have studied
C. am studying D. was studying
27. D
27. D本题考査动词时态的用法。表示过去某时某事正在发生应用过去进行时。故was studying符合题意。
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