问题
选择题
A new ___ bus service to Tianjin Airport started to operate two months ago. [ ]
A. normal
B. usual
C. regular
D. common
答案
答案：C
搜题请搜索小程序“爱下问搜题”
A new ___ bus service to Tianjin Airport started to operate two months ago. [ ]
A. normal
B. usual
C. regular
D. common
答案：C