---Tom has ______ a good way to deal with his old books. He plans to donate them to poor children.---Really? That’s great.
Could you tell me how long you _____ on your homework every day?
The number of the students in our school ___ 1,000, and a number of them ___ boys.
Children _______ sit in the front seat of a car. It’s too dangerous.
She says she will come to visit our school _____ next week.
---May I go home right now? ---No, you____. You must finish your work first.