题目内容
3.Many accidents _________ by careless drivers last year.( )A. | are caused | B. | were caused | C. | have caused | D. | will cause |
分析 去年许多事故是由粗心的司机造成的.
解答 答案:B 考查一般过去时.主语many accidents与cause之间是动宾关系,要用被动语态,排除C、D项;根据句中时间状语last year,要用一般过去时,排除A项,故选B.
点评 解答此类问题要了解各种时态的用法,然后根据上下文及结合语境给出正确答案.
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