II. Underline the correct answer
1. If you like, I can/may make an appointment for you to see Dr Krall tomorrow.
2. Passengers mustn’t /don’t have to smoke while on board the plane.
3. Don’t let Sylvia climb that tree. She might/can fall.
4. You probably shouldn’t/ mustn’t keep your passport in that pocket: it could/ should easily be stolen.
5. I’m afraid Karen can’t/couldn’t come to the party tomorrow because she’s got flu.
6. Oh no! It mustn’t/can’t be 7 o’clock already. John and Graham will be here in fifteen minutes.
7. I absolutely ought to/have to leave the house at 6 if I want to be at the station by six-thirty.
8. Be careful, that pot’s very heavy. You have to/could hurt your back.
9. I have to/ must wear uniform at work according to the work principles.
10. Jack told his son: ‘Today, you have to/ must cut the grass in the garden.’
11. I’m not sure where he is now. He might/can be in his office.
12. When I was at high school, we had to/must wear uniform on Mondays.
13. He couldn’t/shouldn’t write until he was eight.
14. This is the first time Tom’s been to Germany. Fortunately, he will /can speak German.
15. Is it true that cats must/can see in the dark?
16. Do you think I should/ could buy Alex a birthday present?
17. The doctor said I don’t have to/ mustn’t lift anything heavy
18. You shouldn’t/ couldn’t join the team if you don’t want to
19. Frank’s not in his office. He can/might I at lunch.
20. Come on, put those books away- you shouldn’t/ mustn’t be studying at this time of night.
21. Should/ Can I have tomorrow off? I have to/must go to the dentist because I have a toothache.
22. I’ll be quit late getting to London, but you mustn’t/ don’t have to change the plans for me.
23. Students may/should be encouraged to type their assignments. It is easier for their professors to read.
24. The president said that there can/might be a strike next week.
25. I don’t know what I’m doing tomorrow. I must/ might go to the beach or I may stay at home.

I. Decide which word is correct
1. The car broke down and we………….a taxi.
a. must have got b. have to get c. had to get d. must get
2. When my father was young, he ……work in the garden for long hours.
a. can b. could c. will d. should
3. It ……rain this evening. Why don’t you take an umbrella?
a. could be b. might c. must d. has to
4. ……you carry this bag for me?
a. May b. Should c. Will d. Must
5. It is possible that she will come to our party tonight. She ……come tonight.
a. need b. may c. should d. must
6. Tom painted his room black. It looks dark. He ……repaint it with another colour to make it brighter. .
a. should b. may c. can d. will
7. By the time Jack was ten, he ……speak three languages.
a. can b. could c. may d. must
8. If you don’t tell me your problem is, I ……help you.
a. can’t b. shouldn’t c. needn’t d. mustn’t
9. Smoking is harmful for your health, you ……stopping smoking.
a. will b. can c. should d. might
10. I’m sorry to hear that your sister is being terrible o you. I think you ……continue being pleasant to her.
a. should b. could b. can d. will
11. I’m overweight and the doctor say that I ……do exercise more often.
a. must b. will c. have to d. mustn’t
12. It’s rather warm there. You ……take a jacket.
a. don’t have to b. mustn’t c. can’t d. won’t
13. In this school, students are not allowed to smoke. They ……smoke.
a. don’t have to b. needn’t c. shouldn’t d. mustn’t
14. The police said that all visitors ……make sure that they know where the fire exists are.
a. must b. have to c. had to d. has to
15. …………I speak to Mr. Shaw please?
a. May b. Must c. Might d. Would
16. I don't think I want to see this film. ~ Oh, I think you……enjoy it.
a. can b. shall c. will d. would
17. It will possibly rain tomorrow.
a. can b. must c. might d. would
18. You ……..see a doctor about this problem.
a. might b. should c. had better d. both b&c
19. George ……call his insurance agent yesterday.
a. had to b. must c. has to d. both a&b
20. We …..be going to France this summer, but we’re not sure yet.
a. can b. could c. must d. might
21. You ……buy any sugar. There’s plenty.
a. should b. mustn’t c. needn’t d. couldn’t
22. Everyone's asleep. We…………….. make a noise.
a. couldn't b. mustn't c. needn't d. wouldn't