—Iwonderhowmuchyouchargeforyourservices.—Thefirsttwoare...
來源:國語幫 8.22K
問題詳情:
— 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. 考查連詞的用法。while表對比。
知識點:連詞
題型:選擇題