If nothing , the oceans will turn into fish deserts.A. doesB. had been doneC. will doD. is

发布时间：2020-08-17 04:49:57

If nothing     , the oceans will turn into fish deserts.
A. does
B. had been done
C. will do
D. is done

网友回答

A. does
B. had been done
C. will do
(答案→)D. is done
解析：句意：如果不采取措施，海洋将变成鱼的沙漠。If引导的条件状语从句中：nothing作主语，和谓语动词原型do构成逻辑上的被动关系，用被动语态。
【考点定位】考查动词的被动语态。
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