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—Iwonderhowmuchyouchargeforyourservices.—Thefirsttwoare...

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问题详情:

—Iwonderhowmuchyouchargeforyourservices.—Thefirsttwoare...

— I wonder how much you charge for your services.

— The first two are free _______the third costs $30

A. while                   B. until             C. when            D. before

【回答】

A. 考查连词的用法。while表对比。

知识点:连词

题型:选择题

TAG标签:#Thefirsttwoare #