Modal verbs

A  What kind of food is this?

     B  I’m not sure. It _____ be Thai or Indonesian, I think.

• must

• can't

• mustn't

Hurry up! We _____ be late.

• should

• mustn't

• don't have to

He couldn't find a taxi so he _____ walk.

• had to

• must

• should

He _____ happy. He didn't get the job he wanted.

• can't be

• can't to be

• can be

You _____ use your mobile phone when you're in a 'quiet zone'.

• haven't to

• mustn't

• don't have to

Why _____ work last weekend?

• must they

• did they have to

• had they to

I've never _____ able to ice-skate well, but I keep practising.

• be

• been

• to be

I _____ able to read when I was four.

• could be

• am

• was

I have a problem with my mobile phone. What _____ do?

• should I to

• I should

• should I

I've never _____ to dance salsa very well.

• could

• be able

• been able