'Look. Simon's given me a present. What do you think it is?''It ___________ be perfume, I suppose. It's about the right size.'

• could

• can

• must

'Where's Kim?'I'm not sure. Try her office - she ___________ be in there.'

• must

• can

• might

'I haven't seen Jeff today. Is he off sick?' 'He __________ be - I saw his car in the car park.'

  

• can

• mustn't

• can't

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

 

• couldn't

• can't

• might not

'What kind of bird is that?' 'I'm not sure. It __________ be an eagle but I can't see it very well.'

  

•  must

• might

• can't

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

 

• couldn't

•  could

•  must

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

• may

• must

• might

'Is that Suzie's jacket?' 'No, it ___________ be - it's too big.'

• mustn't

• might not

• can't

'Look! What's that light in the sky? It's not a star - it's moving.' 'It ____________ be a plane, silly! What else could it be?'

• must

• could

• might

'Whose bag is this?' 'It __________ be Mike's. It's on his desk.'

  

•  may

• might

• must