But for water,it ____impossible to live in the earth a is b was c_英语解答 - 作业小助手

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But for water,it ____impossible to live in the earth a is b was c were d would be
选哪个,为什么?

人气：340 ℃　时间：2020-02-05 12:45:05

解答

D 如果没有水就不可能在地球上生存表示假设虚拟语气

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