—Can I smoke here?—Sorry.We don’t allow_______here.
#98519
A
people smoking
B
people smoke
C
to smoke
D
smoking
推荐题目
______to the sun for too long, I think, can hurt your skin.
#89714
A
Being exposed
B
To expose
C
Exposing
D
Exposed
He sent me an E-mail, _____ to get further information. 
#92831
A
hoped
B
hoping
C
to hope
D
hope
Stephen tried to get his wok______ in the medical circle.
#91413
A
to recognize
B
recognizing
C
recognize
D
recognized