You must ride your bike ____ the right side of the road.    
#50191
A
at
B
on
C
in
D
for
推荐题目
 You should do your homework__ watching TV.
#47686
A
because of
B
instead of
C
instead
D
except
--Can a plane fly_______ the Atlantic Ocean? --Yes, but it needs to go_________ the clouds for hours.
#50800
A
across, through
B
through, across
C
across, across
D
through, through
We shouldn’t read ________ the sun. It’s bad ______ our eyes.
#49554
A
under; of
B
under; for
C
in; of
D
in; for