If we _________ the earth, we must take action before it is too late. A.will save B.are to save C.ar

题目简介

If we _________ the earth, we must take action before it is too late. A.will save B.are to save C.ar

题目详情

If we _________ the earth, we must take action before it is too late.
A.will save B.are to save C.are about to save D.are saving
题型:单选题难度:中档来源:不详

答案

B

试题分析:原句意思是,如果我们要拯救地球,那么在太迟之前我们必须采取行动。be to do结构,在条件状语从句中用一般现在时表示将来,答案为B。
点评:解答此类题型要根据前后句的关系,来判断时态。be to do结构,在条件状语从句中用一般现在时表示将来。

更多内容推荐