If we _________ now to protect the environment, we’ll live to regret it.A. hadn’

题干

If we _________ now to protect the environment, we’ll live to regret it.
A. hadn’t acted B. haven’t acted C. don’t act D. won’t act

上一题下一题 0.65难度单项选择更新时间:2013-07-25 09:22:42

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