Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it. 
#54963
A
be stopped to throw
B
be stopped from throwing
C
stop to throw
D
stop from throwing
推荐题目
Look ! Mr Wang ______his students
#61893
A
talks to
B
talking with
C
talks with
D
is talking with
The Green family _____supper at 6:00 in the evening.
#61589
A
has
B
have
C
to have
D
are having
How many states _______ the United States? Fifty. 
#57159
A
turn up
B
make up
C
end up
D
give up