Some keys are in Classroom 3F. Please ask the teacher __________ them.
| A．to. | B．in | C．at | D．for |
【2013上海】—Must I go to medical school and be a doctor like you, dad?
—No, you _______,son. You’re free to make your own decision.
| A．can’t | B．mustn’t |
| C．shouldn’t | D．needn’t |
【2013四川广安】—____I swim here?
—No, you _____. Look at the sign “No swimming”.
A. Must：can’t
B. Can; don’t
C. Can; mustn’t
【2013四川南充】— Excuse me, whose book is this?
— It ________ be John’s. It hashisname on it.
A. mustB. needC. can’t
【2013四川遂宁】―Must I return the book this week?
― No, you . You can it for 20 days.
A. mustn’t, keep
B. needn’t, borrow
C. needn’t, keep
【2013浙江舟山、嘉兴】Drivers ________ wear seat belts while theircars are running on the road.
| A．need | B．can | C．must | D．may |