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 Havingatripabroadiscertainlygoodfortheoldcouple,butitr...

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问题详情:

 Havingatripabroadiscertainlygoodfortheoldcouple,butitr...

 Having a trip abroad is certainly good for the old couple, but it remains ______ whether they will enjoy it.

A. to see                       B. to be seen                C. seeing                            D. seen

【回答】

B

知识点:非谓语动词

题型:选择题

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