- Some students often drop litter carelessly in our school. What can we do?- We can _______ some signs to remind them not to do that again.
#52736
A
put up
B
put off
C
put away
D
put on
推荐题目
She has __________ close friends so that she really doesn’t know __________.
#52347
A
many; who to talk
B
few; who to talk to
C
much; what to do
D
little; how to do
You should try your best ____ your English. 
#57127
A
to improve
B
improving
C
improves
D
improve
She _________ wash the dishes now.
#58842
A
not has to
B
not have to
C
doesn’t has to
D
doesn’t have to
 ________, 90% of the money ____ hers.
#54860
A
In our surprise, is
B
To our surprise, is
C
To our surprises, are
D
To me surprise, is