> 英语 >
it is high time that we ( ) to think how to deal with the problem of air pollution.
A.began B.would begin C.begin.D.should begin.如何选,为什么?
人气:311 ℃ 时间:2019-10-09 02:58:31
解答
A,固定结构,It's time sb did sth.
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