Can you hear the girls ______in the next room?
#49585
A
sang
B
tosing
C
singing
D
sing
推荐题目
In the old days, people lived in caves and they had to make a fire _________themselves warm.
#50642
A
to keep
B
keeping
C
keep
D
kept
Our English teacher encourages us part in all kinds of after-class activities.
#50783
A
to take
B
take
C
taking
D
to taking
Miss Wang asks the students in the river, because it’s too dangerous.
#48696
A
swim
B
to swim
C
not to swim
D
to not swim