题目内容
15.MaYun _______ an English teacher in a university for 5years before he started Alibaba.( )A. | will be | B. | is | C. | has been | D. | had been |
分析 在他创办阿里巴巴之前,马云在一所大学里当了五年的英语老师.
解答 答案:D
根据句中的时间状语从句"before he started Alibaba"使用了一般过去时,可知"马云在一所大学里当了五年的英语老师"是发生在过去他创办阿里巴巴之前;故此处表示发生在过去之前的动作,应使用过去完成时;故选D
点评 本题考查了过去完成时的用法;做本题的关键在于:能根据句中的时间状语确定出该动作发生的时间是在过去某时间之前;另外,还应熟练掌握过去完成时及其它各时态的意义及用法区别.
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