托业考试

根据网考网考试中心的统计分析，以下试题在2017/10/16日托业考试习题练习中，答错率较高，为：63%
【单选题】Your quick comments on our services are needed to make our company more customer-friendly ______ will assist us in serving you more efficiently.

• (A) what
• (B) so that
• (C) which
• (D) and