must/may/might/could/can't/couldn't Focus 3

 I’m not sure, but I guess the bird we saw in the park ____________ a blackbird. They’re quite common here.

 Jane ____________ to at least 50 different countries by now – every year she travels for three or four months.

Andrew's plane landed in Malaga three hours ago. I’m sure he ___________ at the beach now. 

It's a public holiday tomorrow.I think there ___________ a lot of people at the airport.

 The information in this guide book is all out-of-date. Its authors ___________ to Hungary recently

This ___________ the only direct train to London. I'm sure there are more.

It’s possible that the animals are hungry. =

The animals ___________________ hungry.

I’m sure you were very scared. =

You _____________________ very scared.

No, it’s not possible that it’s an eagle. =

No, it ____________________ an eagle.

It’s possible that the animal escaped from a zoo. =

The animal ____________________ from a zoo.

I’m sure it’s a 12-hour flight. =

It ______________________ a 12-hour flight.

It isn’t possible that they saw tigers in Africa! =

They _____________________ tigers in Africa!