----Must they clean the classroom now?
----No, they ______.
| A．can’t | B．needn’t | C．mustn’t | D．don’t |
— Jim, never cross the road here. There are too many cars.
— Thanks. _______________.
| A．I can’t | B．I don’t |
| C．I’m not | D．I won’t |
You_________ be too careful while you are driving a car.
| A．needn't | B．must | C．may | D．can't |
--May I swim in the lake, mum? --No, you_______. Look! Here is a notice “No Swimming!”
| A．mightn’t | B．mustn’t |
| C．needn’t | D．may not |
—Where is John?
—He be reading books in the library, but I’m not sure．
| A．must | B．may | C．can | D．should |
—Must I finish my homework now?
—No, you _________. You may have a rest first.
| A．mustn’t | B．can’t |
| C．may not | D．needn’t |
.----Look! Our Chinese teacher, Mr Zhang, is playing badminton there.
----No, it ________ be Mr Zhang,. He has gone to Guangzhou for a meeting.
| A．can’t | B．mustn’t |
| C． shouldn’t | D．may not |
—Let’s go climbing, shall we ?
— You _______ be joking ! Don’t you know I’m afraid of high places ?
| A．can | B．should |
| C．might | D．must |
--You look pretty in green, Kate.
---Thank you. I like green. Green ______give me energy.
| A．can | B．must | C．should | D．has to |
--- 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 | D．mustn’t; lend |
If anyone wants to say something in class, you ________ put up your hands first.
| A．must | B．may | C．should | D．Can |
– I often see Mary in the library, she _________ love reading best.
– That’s right.
A. need B. may C. must
You _____ __ wash your hands before meals. It is good for your health.
A. must B. can C. have to
You go through the security check（安检）before getting on the train.
| A．can | B．might | C．may | D．must |
---I forgot to bring my dictionary. Could I use yours?
---Yes, you ________.
| A．can | B．must | C．could | D．should |
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