问题 选择题

In the past several weeks, many cities in Northern China        from heavy fogs and severe cold.

A.had suffered

B.have been suffering

C.were suffered

D.suffered

答案

B               

             

题目分析:考查动词的时态。句意 在过去的这几个星期里,中国北方的许多城市遭受了严重的雾霾。根据句子中提到的时间状语In the past several weeks 在过去的这几周,雾霾天一直都在持续,所以用现在完成进行时来表达,故选B项。         

考点 : 考查动词的时态

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