问题
选择题
Look at the sign, Sir. We don't permit ________ in the hall. [ ]
A. smoke
B. to smoke
C. smoking
D. to have a smoke
答案
答案:C
Look at the sign, Sir. We don't permit ________ in the hall. [ ]
A. smoke
B. to smoke
C. smoking
D. to have a smoke
答案:C