1 . 它肯定是出故障了。（汉译英）
___________________________________________________________________________________________

2 . This red bicycle ________ be Linda’s, because she rides it to school every day.

A．can

B．would

C．must

D．might

3 . Mum ____be preparing for the festival in the kitchen. Let’s go and see!

A．can

B．may

C．must

D．shall

4 . Susan’s parents have bought a large house with a swimming pool. It ________ be very expensive.

A．must

B．can

C．mustn’t

D．can’t

5 . This toy        be Amy’s. She is the only kid at the picnic.

A．can

B．must

C．need

D．can’t

6 . He had been working for more than 11 hours. He ________ be tired after such hard work. He ________ prefer to get some rest. (用适当的词填空)

7 . This pair of glasses        be Tony’s. He’s the only one who wears glasses in our class.

A．must

B．might

C．can’t

D．can

8 . —Finish the homework in half an hour! Mom, you________be joking!
— Nothing is impossible if you put your heart into it.

A．need

B．can

C．must

D．may

9 . Natalia hasn’t responded to any of our messages. She __________to be with us.

A．must not be willing	B．couldn’t have wanted
C．doesn’t have to want	D．shouldn’t want

10 . You ________ on the phone at that time, for I couldn’t get through.
你当时一定在打电话聊天, 因为我打不通。