问题详情:
— 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. 考查连词的用法。while表对比。
知识点:连词
题型:选择题
问题详情:
— 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. 考查连词的用法。while表对比。
知识点:连词
题型:选择题