-My parents have ever been to Canada. -Really? When there? A. have they been B. will t——青夏教育精英家教网—

题目内容

—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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