问题
选择题
.Why did you take a taxi____you could come here by bus?
A．while
B．unless
C．when
D．until
答案
答案：C
搜题请搜索小程序“爱下问搜题”
.Why did you take a taxi____you could come here by bus?
A．while
B．unless
C．when
D．until
答案：C