Could you tell me how long you _____ on your homework every day?
A. cost B. spend C. take D. pay
The number of the students in our school ___ 1,000, and a number of them ___ boys.
A. is, are B. is, is
C. are, is D. are, are
Children _______ sit in the front seat of a car. It’s too dangerous.
A. need B. needn’t C. must D. mustn’t
She says she will come to visit our school _____ next week.
A. sometime B. some time
C. some times D. sometimes
---May I go home right now?
---No, you____. You must finish your work first.
A. don’t B. can’t C. needn’t D. mustn’t
My mother was doing the cleaning in the sitting room ________ the telephone rang.
A. when B. while C. since D. as soon as
