Don’t play with fire. It’s dangerous. — ____________.

said that many kids are worriedabout the year 2012, ,they think the earth will be destroyed by disasters.

Look at the timetableHurry up! Flight 4026 ____ off at 18:20

Is Jim playing computer games in his room—No, he _____. The computer has broken down.

People generally think that smoking is a bad __________ .