The river smells terrible. People_______ dirty things into it .
#44850
A
must stop to throw
B
must stop from throwing
C
must be stopped to throw
D
must be stopped from throwing
推荐题目
A new house ___ at the corner of the road.
#44460
A
is building
B
is being built
C
been built
D
be building
 The students    how to do the experiment in class yesterday.
#45055
A
were taught
B
better
C
was taught
D
teach
We ______ to close the windows before we left the lab.
#45022
A
tell
B
told
C
are told
D
were told