The human beings have polluted the environment seriously. It is time the United

游客2025-01-19 24

问题 The human beings have polluted the environment seriously. It is time the United Nations must take some measures.

选项 A、take
B、taking
C、to take
D、took

答案 D

解析环境污染已十分严重。联合国是时候采取措施了。本题考查it is time that sb. did sth. “是时候做某事了”结构，故选D项。

转载请注明原文地址:http://tihaiku.com/zcyy/3919066.html

相关试题推荐

随机试题

最新回复(0)

OfalltheemployedworkersintheUnitedStates,12.5millionarepartofa