_______ cross the road before the traffic lights turn green .
—You don’t have to take a raincoat. It isn’t going to rain.—Well, I am not sure. It ______ do.
We all know some of the police’s duties are to keep order and ______ the law.
—Mum, let’s go shopping together.— Can’t you see I’m so busy, dear? I ______ tomorrow’s meeting.
Give me another chance, ______ I’ll give you all a wonderful surprise.
Next term one thousand junior high school graduates ______ as pilots in China.