We do not permit _________ in the office.
#96232
A
to smoke
B
to smoking
C
for smoking
D
smoking
推荐题目
l'm afraid that I can't attend Tom's wedding party_______next weekend.
#90988
A
to be held
B
being held
C
held
D
is to be held
We’re trying our best to get our English _____.
#97948
A
improved
B
to improve
C
improves
D
improving
 Do you know the Three Gorges Dam is the largest hydro-electric dam ever_______?
#91699
A
constructed
B
constructing
C
to be constructed
D
been constructed