Mr. Wang often says to her child, “You _______ play with fire(火). It’s dangerous.A. mustn’t B. had better C. needn’t
---Whose shirt is that? ---It’s _____________.
---How many ________ are there in your class? ---There are twenty-five.
This is a picture _________ my school.
There is art room on the first floor.
Playing computer games __________ a lot of __________.