题目内容
15.It's high time we _____ some actions to prevent pollution.( )A. | take | B. | took | C. | taking | D. | is taking |
分析 是我们采取行动来制止污染的时候了.
解答 答案为B.
It is time that sb+过去时/should+动词原形,构成虚拟语气,故选B.
点评 本题考查固定句型:It is time that sb 过去时/should+动词原形,构成虚拟语气;

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