问题
选择题
| — How many times have you been to China? — In fact, it is the first time I _____ here. |
A. was B. am C. had been D. have been |
答案
答案：D
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| — How many times have you been to China? — In fact, it is the first time I _____ here. |
A. was B. am C. had been D. have been |
答案：D