Complete the sentences with must or can't.
1 That tent's tiny! It can't be big enough for eight people!
2 Look, that ____be our hotel over there - I recognise it from the website.
3 The boat trips are very popular, so they____ be good!
4 Everyone's swimming in the sea, so the water____ be too cold.
5 The food in that restaurant looks amazing, so it ____be expensive!
6 That_____ be our bus - our bus isn't due until 10.30, and it's only ten o'clock.​