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The human beings have polluted the environment seriously. It is time the United
The human beings have polluted the environment seriously. It is time the United
游客
2025-01-22
9
管理
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
It is(about/high)time that…句型用虚拟语气,其谓语部分用一般过去时,因此D为答案。
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