You ____________ be hungry again - you've only just eaten!

• may

• can't

• must

• might not

You ___________ be hungry - you haven't eaten since this morning.

• must

• can't

• may not

• mustn't

A: 'I'm worried about Grandma. I tried to call her but she's not answering her phone.'

B: 'She _____________ be out. Or she might be asleep - she sometimes has a nap in the afternoon.'

• must

• may

• can

• can"t

A:'What kind of bird is that?'

B: 'I'm not sure. It __________ be an eagle but I can't see it very well.'

• can't

• must

• might

• mustn't

A: 'I haven't seen Ross today. Is he off sick?'

B: 'He __________ be - I saw his car in the car park.'

• can't

• can

• must

• may

That man ______________ be Tim's father - he looks just like him.

• might not

• can't

• may

• must

A: 'There's someone at the door.'

B: 'It ____________ be John. He just called to say he was coming.'

A: 'Look. Simon's given me a present. What do you think it is?'

B: 'It ___________ be perfume, I suppose. It's about the right size.'

Look at that guy over there. He's only got a T-shirt on and it's 5 degrees. He _________ be freezing!

'Where's Kim?'

I'm not sure. Try her office - she ___________ be in there.'