Only when­­­­­­­­­­­­­­­­­______

题目简介

Only when­­­­­­­­­­­­­­­­­______

题目详情

Only when­­­­­­­­­­­­­­­­­___________ according to the directions can the medicine be quite effective.
A.takingB.takenC.being takenD.having been taken
题型:单选题难度:偏易来源:不详

答案

B

试题分析:句意:只有当按照说明被服用这个药才能非常有效。这里用了状语从句的省略,完整的是only when the medicine is taken according to the directions can…,当主从句的主语一致的时候,可以省略从句的主语和be动词,所以选B。

更多内容推荐