We don’t allow ___in the office. But you are allowed ____in the rest room. 
#89766
A
smoking, smoking
B
to smoke, to smoke
C
smoking, to smoke
D
smoke, smoking
推荐题目
Did you hear the sound like that of a door _____?
#98298
A
burst
B
to burst in
C
burst in
D
to be burst in
 The glass of water is too hot. I prefer some cold _____ water. 
#98249
A
to boil
B
having boiled
C
boiled
D
boiling
 the shark drawing closer to her,the clumsy swimmer was ____almost to death.
#89370
A
Seeing;scared
B
Seeing;scary
C
Seen.;scare
D
To see;scared