Don’t leave the water ______ while you brush your teeth. 
#94670
A
run
B
running
C
being run
D
to run
推荐题目
I always regret not         harder when I was young .
#97664
A
studying
B
having studied
C
to study
D
to have studied
The young couple came to the ball without ___________.
#97709
A
being invited
B
inviting
C
been invited
D
invite
____ the dog barking fiercely, away____.
#92044
A
To hear; fleeing the thief
B
Hear; was fleeing the thief
C
Heard; the thief was fleeing
D
Hearing; fled the thief