—My parents have ever been to Canada. 　　　　
—Really? When ________ there? 　　　　

A. have they been 　　　
B. will they go　　
C. had they been 　　　
D. did they go
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科目：初中英語 來源：同步題 題型：單選題

—My parents have ever been to Canada. 　　　　
—Really? When ________ there? 　　　　

[     ]

A. have they been 　　　
B. will they go　　
C. had they been 　　　
D. did they go

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