题目内容
3.-What did Mr.Smith do before he came to China?-He ______ in a car factory.( )
A. | works | B. | worked | C. | is working | D. | will work |
分析 -在史密斯先生来中国以前他做什么?
-他在一家汽车厂工作.
解答 答案:B 根据问句before he came to China,表示过去的时间状语,则回答应使用过去时态.故选B.
点评 判断动词的时态,要通过所给的时间状语去判断动词存在的状态.
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