题目内容

【题目】— I like your new shoes!

— Thanks. I had to try on almost a dozen pairs _________ I decided to get them.

A. as B. when

C. after D. before

【答案】D

【解析】介词辨析. A.当做 B.当……时候C.在……之后 D.在……之前。根据题意,谢谢。在我决定买它之前,我几乎试了十几双。故选D

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