问题补充：
---Lily, how long the Football Club?
---Since two months ago.
A. you have joined
B. have you joined
C. you have been in
D. have you been in
答案：
A. you have joined
B. have you joined
C. you have been in
(答案→)D. have you been in
解析：本题考查how long的用法，how long 要与延续性动词连用，故选D。句意：——莉莉，你在足球俱乐部多长时间了？——自从两个月前。
