问题补充:
It is a good plan in theory, but it to be seen whether it works in practice.
A. keeps
B. stays
C. stands
D. remains
答案:
A. keeps
B. stays
C. stands
(答案→)D. remains
解析:考查固定句型:It remains to be seen whether…,是否…还有待证实,句意:在理论上这是好的计划,但是否在实际上能奏效还有待证实。Keep,stay,stand都不可以接to be。选D。
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