问题补充:
---How long?
---For two years.
A. have you left my hometown
B. have you come to the city
C.
D. are you going to your hometown
答案:
A. have you left my hometown
B. have you come to the city
(答案→)C.
D. are you going to your hometown
解析:---你要在城市呆多久?---