问题
选择题
We are not allowed ______ in public. [ ]
A. to wait in line
B. to pick up the litter
C. to smoke
D. to keep your voice down
答案
答案：C
搜题请搜索小程序“爱下问搜题”
We are not allowed ______ in public. [ ]
A. to wait in line
B. to pick up the litter
C. to smoke
D. to keep your voice down
答案：C
