1. —Must I water the flowers now， mum？

—No，you_____. You_____do it later.

A. mustnt； must B. mustnt； may

C. neednt； may

2.—______I know by what time you want the

project to be done？

—By the day after tomorrow. ______ you finish

it on time？

A. May； Can B. Must； Need C. Could； Must

3.—Whos singing in the garden？

—It_____be Mr. Brown. He always practices

singing at this time.

A. must B. cant C. need

4. I ______follow you. Would you please repeat it？

A. cant B. mustnt C. neednt

5. —Must I hand in my homework now， Mr. Smith？

—No， you _______.

A. cant B. shouldnt C. neednt

6.—Excuse me， may I keep the book a little longer？

—Sorry. You ________ return it today.

A. must B. mustnt C. can

7. —Is the man over there Mr. Brown？

—It ______him. He has gone to Brazil to watch

the 2014 FIFA World Cup.

A. may not B. cant be C. shouldnt

8. Children _______ sit in the front seat of a car.

Its too dangerous.

A. need B. neednt C. mustnt

9. —I forgot to bring my dictionary. Could I use yours？

—Yes， you ______.

A. can B. must C. could

10. The man is feeling much better now， so you ______

call a doctor.

A. neednt B. cant C. mustnt

11. —Is the long-haired man Bruce？

—No， it _______ be him. Hes in New York now.

A. cant B. mustnt C. neednt

12. People _______ wait until the traffic becomes

green. Thats the traffic rule.

A. must B. can C. need

13. If you _____ smoke， please go outside .

A. can B. may C. must

14. After you read the article “Why fast food is slowly

killing you？”， you______stop eating fast food.

A. can B. may C. have to

15. Look at the “No parking” sign. You _____park

your car here.

A. should B. must C. mustnt