For each sentence, choose between can't, might or must to fill each
space.
1. Your mother __________ be a great cook. You are always so keen to get back home to
eat! 2. I don't know why I am so tired these days.
I __________ be working too hard. Or maybe I am not sleeping too well.
3. Do you know where Carl is?
He __________ be out - his car keys are on the table.
4. You seem to know everything about the theatre. You __________ go every week.
5. To give the promotion to Harold was silly. He __________ know much about this
company after only a year working here.
6. Go and look in the kitchen for your gloves. They __________ be in there.
7. Oh, the phone is ringing. Answer it. It __________ be Kate. She always rings at this time.
8. Dan has been drinking that whiskey since early this afternoon. He __________ be totally
drunk by now.
9. That couple __________ think much of this film. They're leaving already - after only 20
minutes!
10. That's the second new car they have bought this year. They __________ be very rich!
Match the two sentence halves and write a – h next to the number 1 – 8.
1…….. Would you like to come for lunch this weekend?
2…….. Can you help me with this table a moment?
3…….. Could you tell me where the nearest bank is, please?
4…….. Would you like me to ask my brother?
5…….. Can I come round to your house later?
6…….. Could you lend me £20, please?
7…….. Can I get you a cup of tea?
8…….. Would you mind passing me that menu, please?
a. Oh, yes, please! Could you? b. Well, actually, my mum’s not feeling well. Maybe
another time. c. I suppose so. But I need it back before Friday. d. Yes, of course.
Here you go. e. Yes, sure. Where do you want to put it? f. I’m sorry, I’m not from
around here. g. No, I’m OK, thanks, I’ve just had one. h. Oh, I’d love to, thank you
Write the words in the correct order to make sentences.
1. have some I Can water ?
2. coffee Would like ? you a
3. How ? I help can you
4. do Could a favour me ? You
5. giving a you me mind Would hand?
6. up please? me Can pick you later,
7. explain you Could this, please ?
8. come for you round to like Would dinner?
1.Fill in the blanks with must/ have to in the correct (affirmative or negative) form.
1. We __________________ cheat in exams.
2. My little sister ______________________ make her bed; mum makes it every day.
3. Teachers _________________ correct lots of exams every school term.
4. People ___________________ pass a driving test before driving a car.
5. Nobody _________________ wear a uniform in my school.
6. You ____________________ have a library card to borrow books.
7. I _____________________ eat lunch in the canteen; I always have lunch at home after
school.
8. We ______________________ do after-school activities; but some students do.
9. Mum ___________________ get up really early to go to her office every day.
10. Carol ____________________ take the school bus; her house is only a- five-minute-walk
to school.
2. Fill in the gaps with the correct (affirmative or negative) form of should/ can/ could.
1. My brother ________________ swim really well now, but he __________________ when he
was 10.
2. I think you __________________ waste so much time playing videogames every
afternoon.
3. That girl _________________ be Susan’s sister; she’s much older than her.
4. _____________ you help me with my homework, mum?
5. Carol ______________ play the piano better when she was younger; now she practises
very little.
6. We _______________ clean up the mess before mum comes home.
7. __________ you walk the dog for me, Walter? I’m really tired.
8. You _____________ pay more attention to your teachers, Dan!
9. Tom _____________ use a calculator when he was 6! He was very clever.
10. Twenty years ago trains _________________ go as fast as today.
1. Dan ___ go to bed early, so he wouldn’t fall asleep in class. a. needn’t b. should c. can
d. mustn’t
2. You ____ eat or drink in the museum. a. mustn’t b. don’t have c. could d. have to
3. That red sweater _____ be Paula’s; she hates red. a. can b. can’t c. must d. don’t
have to
4. I _____ walk the dog three times a day. a. can b. need c. have to d. mustn’t
5. You _____ believe everything the media say. a. mustn’t b. have to c. shouldn’t
d. can
6. Some pets _____ be very dangerous. a. can b. must c. can’t d. should
7. In the future people ____ pay with their mobile phones everywhere . a. must b. need
to c. will be able to d. can’t
8. _____ I borrow you pencil, Sue? a. Must b. Might c. Can d. Should
9. Be careful! You _____ touch anything at the museum. a. don’t have to b. needn’t c.
must d. mustn’t 10. You _________ buy a German dictionary, you _____ borrow mine.
a. must/mustn’t b. needn’t/can c. should/mustn’t d. don’t have to/ must
11. ______ I use your telephone, Mr Jones? a. Must b. Can c. May d. Should
12. You _____ take these pills three times a day until you feel better. a. can d. can’t c.
must d. don’t have to
13. Next year I ____ to speak German quite fluently. a. must b. will have to c. will be
able to d. mustn’t 14. _____ you lend me $50, John? a. Should b. Could c. Do you
have to e. Needn’t
15. You ____ drive faster than 90 kph on secondary roads in some countries. a. don’t
have to b. mustn’t c. needn’t d. may not
16. It’s very cloudy; you ______ take an umbrella, Pam. a. should b. can c. don’t have to d.
mustn’t
Complete the following sentences with mustn’t, have to / has to or don’t have to /
doesn’t have to.
1 If you don't want to go to Tom's birthday party, you _______________________________.
2 No matter what may happen, you _______________________________ forget your smile.
3 I _______________________________ go to the doctor any more. I'm feeling much better.
4 You _______________________________ paint the kitchen yellow. You can paint it any color
you want.
5 Tom isn't the only one who has to study. I _______________________________ study as well.
6 You _______________________________ enter this room without permission.
7 I _______________________________ forget to post the letter.
8 Tom and Mary can't do that alone. You _______________________________ help them.
9 I _______________________________ be here. I'm here because I want to.
10 I can't stay in Boston. I _______________________________ get back to Chicago.
11 I _______________________________ wash the car. Tom and Mary have already washed it.
12 We _______________________________ waste time – we have to do something!
13 You _______________________________ answer any of Tom's questions if you don't want
to.
14 Tom _______________________________ tell Mary how to do that. She already knows.
15 I can't do it alone. You _______________________________ help me.
16 Tom said that I _______________________________ sing if I don't want to.
17 Mary can't come. She _______________________________ take care of her daughter.
18 Tom _______________________________ study French. He can already speak it quite well.
19 I can't eat raw eggs. They _______________________________ be cooked.
20 You _______________________________ forget to write to your parents at least once a
month.
21 Tom _______________________________ eat anything he doesn't want to eat
. 22 The concert starts at seven. We _______________________________ be late.
23 You can't change people. They _______________________________ change themselves.
24 We can't get through. We _______________________________ find another way.
25 This information _______________________________ fall into enemy hands.
26 Tom _______________________________ impress me. He needs to impress the boss.
27 You _______________________________ forget your math textbook again.
28 You _______________________________ think only about your job, you must also think
about the importance of your family.
29 Tom won't be able to do that by himself, so we ______________________________ ask
someone to help him.
30 You _______________________________ forget to check your paper before you hand it in.
can, could, may, might, will
1. Don't worry, Mr. Westmond, I promise, I _________ (may/will) pick up the documents
from the ministry first thing tomorrow morning.
2. I ________ (can/could) type very fast when I was in college. I'm much slower now.
3. I'm sorry, Mrs. Martinez, the rules state that you _________ (may/can) visit your uncle
in Ohio, but you ________ (won't/can't) stay longer than six months.
4. I don't know if I can, but I ________ (might/will) go to Toronto next week
. 5. If you come to visit us next summer, you ________ (can/will) stay in the guesthouse.
6. Jane usually takes two courses each semester, but this semester he said he ________
(could/might) try to take three.
7. If Ashot looks out his back window, he ________ (could/can) see the Caspian Sea.
8. When Jack was younger, he ________ (might/could) ride 30 km on his bicycle in an
afternoon.
9. If you want to, you _______ (can/may) have a swim in the pool before dinner.
10. Next week I ________ (could/may) take a trip into the Sonora Desert.
11. The exam _________ (can’t / might) be easy. You never know.
12. It ____________ (may / can’t) be true about the sauropod dinosaur living in Lake Telé
in the Congo. It’s imposible.
13. I _______________ (can’t / might) go to the party but I’m not sure yet.
14. She ___________ (can’t / could) steal things from shops. She’s rich and famous.
15. He ______________ (can’t / may) be from the USA. He doesn’t speak English.
