题目内容
It ______ last week that the haze (雾霾)in Beijing caused many problems.
A. reports B. reported C. is reported D. was reported
【答案】 D
【解析】考查被动语态。It is/was reported that从句,据报道……,根据last week知道为过去的动作。所以选择答案 D。
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