531] I first met Lisa three years ago. She at a shop at the time. [译文] 我三年前遇到Lisa.她一直在一家商店工作. A. has worked B. was working C. had been worked D. had worked [答案及简析] B. 有at the time这个短语一般都是该用进行时态的. 查看更多

 

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