题目内容
【题目】Many accidents ______ by careless drivers last year.
A. are caused B. were caused C. have caused D. will cause
【答案】B
【解析】本题是对被动语态的考察，主语accidents与谓语动词cause是被动关系，而且整体时态从yesterday可知是一般过去时。
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题目内容
【题目】Many accidents ______ by careless drivers last year.
A. are caused B. were caused C. have caused D. will cause
【答案】B
【解析】本题是对被动语态的考察，主语accidents与谓语动词cause是被动关系，而且整体时态从yesterday可知是一般过去时。