问题
选择题
| — ______ to the United States? — No, never, but I went to Canada a few years ago. |
A. Have you been B. Have you gone C. Did you go D. Will you go |
答案
答案：A
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| — ______ to the United States? — No, never, but I went to Canada a few years ago. |
A. Have you been B. Have you gone C. Did you go D. Will you go |
答案：A