NowadaysmoreandmorepeopletendtobuythingsontheInternet,...

问题详情：

 Nowadays more and more people tend to buy things on the Internet, ________ they believe

   the qualities are good.

A. at which                         B. of which                         C. in which                   D. for which

【回答】

B

知识点：复合句

题型：选择题