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 It’sgreatthatallthevisitorswho

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问题详情:

 It’sgreatthatallthevisitorswho

 It’s great that all the visitors who _______ on the island were saved.

A. trapped               B. have been trapped 

C. had trapped            D. had been trapped

【回答】

D

知识点:过去完成时及其被动式

题型:选择题

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