问题
选择题
| —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 |
答案
答案：D
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| —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 |
答案：D