Modals for dpeculation

Dave ____ left yet-his coat is still here

The traffic's really bad - I'm worried we ____ miss our train.

They're not at home. They _____have gone away for the weekend.

I can't find Jo. She _____have gone home

The plane landed 10minutes ago. Bill ____still be in baggage reclaim.

Buy a laptop? With my pocket money? You _____ nor be serious

The person who called you _____have wanted to sell something to you

You lived in Paris for two years-you _____have seen all the sights.

I'm waiting for an important letter- it _____ arrive today

Liz ______ not have travelled to China on holiday last month-she doesn't have a passport