We are taking action, but how effective it will remain .A. to seeB. to be seenC. seeingD.

发布时间：2020-08-17 00:07:22

We are taking action, but how effective it will remain     .
A. to see
B. to be seen
C. seeing
D. seen

网友回答

A. to see
(答案→)B. to be seen
C. seeing
D. seen
解析：考查remain的用法，remain to be done“仍然要被做”，句意是：我们正在采取行动，但是它的效果如何还有待证实。选B
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