We must keep the classroom ___________.
#61530
A
clean
B
to clean
C
cleaning
D
cleaned
推荐题目
Smoking is bad for your health. You’d better _______.
#61837
A
set it up
B
give it up
C
pick it up
D
look it up
Fengnan __________ to be a wonderful place for visiting now.
#52766
A
know
B
knew
C
was known
D
is known
---With 4G mobile phones, people can even see each other as they talk. ----Really? Would you show me it, please?
#53901
A
how to use
B
when to use
C
where to use
D
what to use
—______the socks, Jim. You shouldn’t throw them everywhere.—OK， Mum.
#58822
A
Put down
B
Put off
C
Put out
D
Put away