The boy _______ in the teachers’ office was found _______ at the school gate yesterday.
#49410
A
standing, smoking
B
standing, to smoke
C
stood, smoking
D
stood, to smoke
推荐题目
Students should do everything they can __their study. 
#50600
A
improve
B
to improve
C
improving
D
improved
I think you have to stop _______. It’s bad for your health.
#49229
A
smoke
B
smoked
C
smoking
D
to smoke
 She is heard_______ every day in her room.
#49195
A
sings
B
sing
C
to sing
D
singing