нужно вместо точек вставить слова

Question

7. You ...read the whole book but you ...read the first four chapters.
8. ..you often...to stay at the University after classes last year?-Yes, we...
9. Excuse me, ..you tell me the shortest way to the station?
10. He is very upset. I think you ...apologize.
11. The students ...smoke in the study rooms and the corridors.
12. I don't think people ...get married until they are 21.
13. It ...rain, so I'll take my umbrella (though I'm not sure in it at all).
14. I ...have my hair cut.
15. You ...use my dictionary for the test if you want. (2 verbs)
16. We ...start yesterday (this was the plan); but the flight (cancel) because of the fog, so we are still here, as you see. (must (not), can (not,) may (might), be able to, be to, needn't, have to, could, should)
Use Passive Constructions:
17. People will talk much about the successful debut of the young actress.
18. You should send the sick man to hospital.
19. Why did they laugh at him?
20. You can always rely on her.

Дмитрий Чиховский · Accepted Answer

7. You had to read the whole book but you read the first four chapters. 
8. Do you often have to stay at the University after classes last year?-Yes, we do 
9. Excuse me, can you tell me the shortest way to the station? 
10. He is very upset. I think you should apologize. 
11. The students mustn't smoke in the study rooms and the corridors. 
12. I don't think people should get married until they are 21. 
13. It might rain, so I'll take my umbrella (though I'm not sure in it at all). 
14. I should have my hair cut. 
15. You can (may) use my dictionary for the test if you want. (2 verbs) 
16. We were to start yesterday (this was the plan); but the flight had been cancelled because of the fog, so we are still here, as you see. 
 
Use Passive Constructions: 
17. the successful debut of the young actress will be talked much about 
18. the sick man should be sent to hospital. 
19. Why was he laughed at? 
20. She can be always relied on