1. That pizza was gigantic. I'm sure Mary ________ eaten it all.
2. Nobody was able to tell the police who that man was, so he _______ be someone from here.
3. Be careful when you walk across that old wooden bridge. It _____ be very safe.
4. I see you haven't finished your homework yet. It ______ be very difficult, then.
5. You ________ touch the oven. It's very hot and you ______ hurt yourself.
6. They are putting the suspect into the police car. The police ________ arrested him.
7. I don't know where he is. Take a look in the garage. He _______ be there.
8. You ________ do any more training today. You look so tired. Take a break!
9. I can't see very well but that ________ be Claire over there. At least, she looks like Claire.
10. Everyone scored over 95% in the first test, so it ________ been so difficult.
11.You _________ drive me to the airport. I can take the bus.
12. You _______ always wear suitable clothes when you go skiing.
13. Pupils ________ go out between the various parts of the exam. It's against the school rules.
14. Danny _______ swim when he was four. Now he's part of the town's swimming team.
15. You ______ buy any food. The fridge is full.
16. John _________ taken a wrong turn somewhere. Otherwise, he'd be here by now.
17. There are signs all over the area, so you ________ have any trouble getting there.
18. This ________ be the house they advertised in the newspaper. It's much too big.
19. Mike ________ left the house. His cell phone is still here, and he never leaves without it.
20. Leaving the house today without an umbrella _______ be such a good idea. It looks like it's going to rain in the afternoon.