I think we all need to help animals live __________.
A. in time B. in danger C. in peace D. in trouble
Everyone __________go through the security check（安检） when entering the Bird’s Nest stadium.
A. can B. may C. must D. might
--Is everyone out of the fire?
—No, _______ two men are still in the burning house.
A. another B. other C. the other D. others
Please __________your mobile phone when you are having a meeting.
A. don’t use B. doesn’t use C. use D. to use
Now computers are very popular and they are much __________than before.
A. cheap B. cheaper
C. cheapest D. the cheapest
Today my mother asked me __________the rooms with her.
A. clean B. to clean C. cleaing D. cleaned
