问题描述：
If we ____ now to protect the environment,we’ll live to regret it.A.hadn’t acted B.ha
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
从句与现在事实相反...怎么感觉全错?
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
从句与现在事实相反...怎么感觉全错?
问题解答：
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