I often hear him ______.Today when I pass(经过)the classroom, I hear him ______again .
#49624
A
sing; singing
B
singing; sing
C
singing; singing
D
sing; sing
推荐题目
The police warned the children __________the football in the street.
#50675
A
don’t play
B
not play
C
to not play
D
not to play
Do you have ____________ to say about your family? 
#51128
A
else anything
B
else something
C
anything else
D
something else
Mum allowed me _____TV last evening.
#49057
A
watching
B
watched
C
watch
D
to watch
Father is sleeping . You’d better __________ quiet .
#51035
A
to keep
B
keep
C
keeping
D
not keep