问题
选择题
You used to sleep with the windows open, ________?[ ]
A．did you
B．do you
C．usedn't you
D．use you
答案
答案：C
搜题请搜索小程序“爱下问搜题”
You used to sleep with the windows open, ________?[ ]
A．did you
B．do you
C．usedn't you
D．use you
答案：C