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
— 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