Nownaturalistshavebeenmakinggreate

发布时间：2020-07-27 03:16:39

Now naturalists have been making great efforts to save the living creatures which are ________．A.dying outB.died outC.dead outD.dying off

网友回答

A解析be dying out意为“正在灭绝”即“快要灭绝”。
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