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It’s high time we ______ something to stop air pollution.A、are doingB、didC、hav
It’s high time we ______ something to stop air pollution.A、are doingB、didC、hav
游客
2023-09-26
28
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问题
It’s high time we ______ something to stop air pollution.
选项
A、are doing
B、did
C、have to do
D、must do
答案
B
解析
本题考点为虚拟语气。句型It is(high,about)time that... 要求用虚拟语气,表示应该做而还没做的事,谓语动词一般用过去式。例如:It’s high time that he stopped smoking。
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