问题
选择题
You must have been there, ____________?
A．have you
B．did you
C．haven’t you
D．didn’t you
答案
答案：C
搜题请搜索小程序“爱下问搜题”
You must have been there, ____________?
A．have you
B．did you
C．haven’t you
D．didn’t you
答案：C