题目内容
A: You look very nice in your new dress today.
B: Oh, really? I ______ it when it was on sale.
A. buy B. bought C. have bought D. will buy
【答案】B
【解析】考查动词时态。when引导一个过去时态的从句,主句的动作也发生在过去,故用一般过去时。
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