modal verbs

A: I can't do my German homework. It's too difficult. 

B: I'll help you. I ... speak German. 

• must

• can

• have to

A: Is Jason at work today?

B: He ... be. His car isn't in the car park. 

• can't

• mustn't

• needn't

A: I'm going to watch television. 

B: Alright, but you ... stay up too late

• can't

• mustn't

• needn't

A: We... book a taxi to take us to the airport. 

B: I'll do it now. 

• must

• can

• have to

A: I didn't know Rachel was in the choir.

B: Oh yes. She ... sing beautifully. 

• have to

• must

• can

A: Shall I cook dinner tonight?

B: No, you ...  . We're going to a restaurant. 

• mustn't

• can't

• needn't

A: Has Tim bought a car yet? 

B: He ... have. I saw him on the bus yesterday. 

• mustn't

• needn't

• can't

A: She ... be very rich.

B: Yes. She's got a huge house and an expensive car. 

• have to

• must

• needn't

A: I did the washing-up for you. 

B: Oh, you ... have, but it was kind of you. 

• mustn't

• needn't

• can't

A: Would you like to come to my party on Saturday night?

B: I'd like to, but Mum says I ... visit my grandparents. 

• can't

• have to

• must