If human beings had been a bit less greedy and cruel, more b

If human beings had been a bit less greedy and cruel, more birds and animals _____dying out.

A．ought to avoid	B．could have been avoided
C．should have avoided	D．might have avoided

zhangxi990 1年前已收到1个回答举报

wish365 幼苗

共回答了27个问题采纳率：81.5% 举报

D

本题涉及虚拟语气的使用，从if引导的从句分析可以知道与过去相反，should have done表示本来不应该但实际上干了，不符合题意。

1年前

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