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

游客2023-12-25 46

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。

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