We don’t allow ____ in the office. But you are allowed ______ in the open air. 
#96186
A
smoking; smoking
B
to smoke; to smoke
C
smoking; to smoke
D
smoke; smoking
推荐题目
Rose found her toy bear _______ under the chair.
#95343
A
hiding
B
to hide
C
having hidden
D
hidden
Sophia got an e-mail ________ her credit card account number.
#91097
A
asking for
B
ask for
C
asked for
D
having asked for