Uzupełnij zdania czasownikami z ramki.

(might have been, can't be, may be, must be, can't have been, must have been)

The bird we saw in the park might have been a blackbird They're 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. He ............... at the beach now. I'm sure he's having a great time.
It's a public holiday tomorrow. There ............... a lot of people at the airport.
The information in this guide book is all out-of-date. Its authors ............... to Hungary for a long time!
This ............... the only direct train to London. I'm sure there are more.