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【题目】I was surprised to find the snack shops around the school empty; the students everything!

A.had been buying B.had bought

C.have bought D.have been buying

【答案】B

【解析】

试题分析:考查时态辨析。根据句意是过去某一时间之前已经完成的事情,故采用过去完成时。句意:我惊讶地发现学校周围的零食店都已经空了;学生们买完了所有的东西。根据句意可以判断, 故选B。

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