Someone is knocking at the door. It my sister. It's time for her to be back.
| A．can’t be | B．may not be | C．must be | D．mustn’t be |
—Must I finish the homework tonight?
—No, you .You can finish it tomorrow.
| A．mustn’t | B．needn’t | C．need | D．must |
Don’t put off today’s work for tomorrow. I mean, today’s work ______ today.
| A．may do | B．must do | C．may be done | D．must be done |
---I don’t want to go to school on foot. What should I do?
---You try asking your father for a bike, or you can go by bus.
| A．have to | B．must | C．might | D．can’t |
–Look at that red bike, it _____ belong to you. I have seen you ride it.
--But it ____ be mine. Mine is broken. I am having it repaired.
| A．may, can’t | B．must, mustn’t | C．may, mustn’t | D．must, can’t |
---Fifty dollars for such a T-shirt! You _______ be joking!
---I’m serious．It’s made of silk.
| A．must | B．need | C．may | D．Can |
— Where’s Lucy ? — She ________ in the office. I saw her there just now.
| A．can’t be | B．must be | C．can be | D．should be |
——Can I walk across the road now, mum?
——No, you_______. You have to wait until the light turns green.
| A．couldn't | B．shouldn't | C．mustn't | D．needn't |
These shoes aren’t comfortable. You __________ wear them.
| A．should | B．could | C．shouldn’t | D．can |
“I hope you _______ come and see me soon” said Grandma Li to her son.
| A．to | B．can | C．will be | D．are going to be |