V. Choose modals and related expressions to fill in the gaps.

1. I'm not really sure where Beverly is. She __________________ in the living room, or perhaps she's in the backyard.

might sit

might be sitting

might have sat

2. Doug __________________ the video we rented on his way to work. It was on the table, but now it's gone.

must have returned

must not have returned

must return

3. You __________________ the air pressure in your tires. You don't want to get a flat tire on your trip.

ought to be checking

ought to check

ought to checked

4. The computer isn't working. It __________________ during production.

can be damaged

should have been damaged

must have been damaged

5. The package __________________ tomorrow afternoon. It was sent by express mail this morning.

should be delivered

should have been delivered

should be delivering

6. You __________________ the tickets for the play in advance - they sell out quickly.

have to book

has to book

have to be booked

7. You can't mean that! You __________________.

must joke

have to have joked

have got to be joking

8. If Debbie hasn't come home yet, she __________________ for us in the coffee shop.

must still wait

must still be waiting

must still have waited

9. Mike decided not to join us for lunch. He __________________ at work to finish the marketing report.

should have been staying

had to stay

should have stayed

10. If I had gone with my friends to Jamaica, I __________________ on a white sand beach right now.

would be lying

would lie

would have lain

11. If I had gone with my friends to Jamaica, I __________________ come to work this week.

would not must

would have had to

would not have had to

12. If I had gone with my friends to Jamaica, I __________________ scuba diving lessons.

might be taken

ought to be taking

could have taken

13. Margaret agreed to meet us at the entrance to the theater. She __________________ for us when we get there.

ought to be waiting

ought to wait

ought to have waited

14. It __________________ Sam who called and didn't leave a message on the answering machine. He said he wanted to get together with us this weekend.

ought to be

might have been

should have been

15. The machine __________________ on by flipping this switch.

can turn

can be turned

can be turning

16. She __________________. That could have been why her eyes were so red and swollen.

has to be crying

could be crying

might have been crying

17. If she was crying, she __________________ very upset.

must have been

shall be

would have been

18. That painting __________________ by Picasso. It could be a forgery.

might be painting

might not paint

might not have been painted

19. Your diving equipment __________________ regularly if you want to keep it in good condition.

must be cleaned

must have been cleaned

must have been being cleaned

20. If I hadn't taken a taxi, I __________________ for you at the train station for hours.

might have been waiting

ought to have been waiting

had to have waited