题目内容

They’ve made full preparations, but it remains ______whether they will be able to do a good job in the experiment.
A.to seeB.seenC.being seenD.to be seen
D

试题分析:考查不定式的被动做表语:句意:他们已经做好准备了,但是是否在实验中能做得好还又待证实。It remains to be seen whether…,是否…还有待证实,这里不定式的被动做表语,选D。
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