题目内容
We must do everything we can waste water from running into rivers.
A.keep | B.kept | C.to keep | D.keeping |
C
试题分析:句意:为了组织废水流进河里,我们必须做我们能做的一切事情。to keep waste water from running into rivers.表示目的,we can,后省略了do,做everything的定语,故选C。
练习册系列答案
相关题目