问题补充：
Do you know when he the Football Club ? And how long he it ?
A. did join ; has been
B. did join in ; have been a member of
C. did join ; has been in
D. has joined ; has been a member of
答案：
A. did join ; has been
B. did join in ; have been a member of
(答案→)C. did join ; has been in
D. has joined ; has been a member of
解析：句意：你知道他什么时候参加足球俱乐部的呢？他加入俱乐部多久了呢?加入俱乐部用join ,动作发生在过去用一般过去时；how long一般与延续性的动词连用，join-be in,故选C
