The river smells terrible. People must_____ dirty things into it.
#55102
A
be prevented to throw
B
prevent from throwing
C
prevent to throw
D
be prevented from throwing
推荐题目
Why don’t you _____ us to _____ the speech contest?
#61790
A
join, join
B
take part in, take part in
C
take part in, join
D
join, take part in
He ____every evening.
#51962
A
do homework
B
does her homework
C
do my homework
D
does his homework
I          this book for two weeks. I have to return it now. 
#58742
A
borrowed
B
have borrowed
C
kept
D
have kept