A. Complete the sentences using the words in the box. Sometimes two or three answers are possible.

can     could     have     may     might     must     mustn’t

ought     should

1   When you travel by bus, you ……must…… have a ticket.

2   When I was a young man, I ………………… run 10 kilometres, but now I’m too old.

3   My mum says I ………………… to come home before 10 o’clock.

4   ………………… I go home early today, please?

5   You ………………… to read this book – it’s very interesting.

6   I’m going to take an umbrella because it ………………… rain later.

7   She ………………… speak French and Spanish, but her English is terrible.

8   What do you think? ………………… I do the exam this year or next year?

9   You ………………… watch television, but please keep it quiet.

10   Don’t worry. You don’t ………………… to buy me a present.

11   ………………… you give me some money, please? I’ve left my bag at home.

12   At the zoo, you ………………… give food to the animals. It’s very bad for them.

Answers

2 could   3 have   4 May / Can / Could

5 ought / have   6 might / may / could

7 can   8 Should   9 can / may   10 have

11 Could / Can   12 mustn’t

B. Match the sentences in Exercise A to these reasons for using modal verbs.

a   talking about present ability   ……7……

b   talking about past ability   ………….

c   asking people to do things   ………….

d   asking for permission   ………….

e   giving permission   ………….

f   talking about rules and laws   ………….

g   talking about things we are not allowed to do   ………….

h   talking about an obligation imposed by others   ………….

i   talking about something which is not necessary   ………….

j   asking for advice   ………….

k   giving advice   ………….

I   talking about the possibility of something being true   ………….

Answers

b 2   c 11   d 4   e 9   f 1   g 12   h 3   i 10   j 8   k 5   l 6

C. Complete the sentences using the modal verbs from the boxes.

could     will     be able to     can

 Last year I ……could…… run 1500 metres in 5 ½ minutes.

 Now I ……………… run 1500 metres in 5 minutes.

 Next year I ……………… run 1500 metres in 4 ½ minutes.

must / have to     will have to     had to

 Yesterday you ……………… wash the windows.

 Today you ……………… wash my car.

 Tomorrow you ……………… wash your clothes – they’re very dirty.

will be able to, won’t be able to

could, couldn’t      can, can’t

7   When I was 5 I ……………… climb trees but I ride a bike.

8   Now I’m 14 I ……………… ride a bike but I drive a car.

9   50 years from now I ……………… drive a car but I ……………… climb trees.

didn’t have to, had to      have to, don’t have to

won’t have to, will have to

10   When I was small I ……………… do homework, but I ……………… go to bed early.

11   Now I ……………… do homework, but I ……………… go to bed early.

12   In 10 years I ……………… do homework and I ……………… go to bed early, but I ……………… get a job.

Write three more similar sentences about yourself.

…………………………………………………………

…………………………………………………………

…………………………………………………………

…………………………………………………………

Answers

2 can   3 will be able to   4 had to

5 must / have to   6 will have to

7 could / couldn’t; couldn’t/could

8 can; can’t   9 will be able to; won’t be able to

10 didn’t have to; had to

11 have to; don’t have to

12 won’t have to; won’t have to; will have to

D. Complete each sentence b so that it means the same as sentence a. Use two to four words including the correct form of the word in brackets.

1    a It’s a good idea to eat fruit and vegetables every day. (ought)

      b You ……ought to eat…… fruit and vegetables every day.

2   a Maybe Sharon will know the answer. You should ask her. (might)

      b You should ask Sharon. She …………………… the answer.

3   a She’ll be very good at playing the piano next year. (able)

      b Next year she will …………………… the piano very well.

4   a I want to open the window. Is that OK? (may)

      b …………………… the window, please?

5   a You must have clean hair before you go in the swimming pool. (have)

      b Your hair …………………… clean before you go in the swimming pool.

6   a Bob will be ready in five minutes. Please wait in the garden. (could)

      b …………………… for Bob in the garden, please? He’ll be ready in five minutes.

7   a It’s possible that Anna isn’t asleep. I’ll phone her. (may)

      b I’ll phone Anna. She …………………… asleep.

8   a Don’t worry. It’s not necessary to wear a tie at the opera. (have)

      b Don’t worry. You …………………… a tie at the opera.

Answers

2 might know   3 be able to play

4 May I open   5 has to be   6 Could you wait

7 may not be   8 don’t have to wear

E. Tick ✓ the odd one out.

1   a You mustn’t speak in the exam.

      b You don’t have to speak in the exam. ✓

      c You can’t speak in the exam.

2   a We may go home now.

      b We should go home now.

      c We ought to go home now.

3   a It might be sunny tomorrow.

      b It may be sunny tomorrow.

      c It has to be sunny tomorrow.

4   a May I sit here?

      b Must I sit here?

      c Can I sit here?

5    a I can’t understand her.

      b I wasn’t able to understand her.

      c I couldn’t understand her.

6   a Could you be quiet?

      b Can you be quiet?

      c Should you be quiet?

Answers

2 a   3 c   4 b   5 a   6 c

F. Complete the dialogue with the modals from the box. Sometimes there is more than one correct answer.

be able to     can/can’t     could     have to     may     might

must     ought     should

Alice:   Where are you going on holiday?

Brad:   To Switzerland. We’re going skiing.

Alice:   Really? 1……can…… you ski?

Brad:   Well, I 2……………… ski quite well when I was a child, but that was 10 years ago. I think I 3……………… have some problems.

Alice:   No, you’ll be fine. You’ll 4……………… be careful on the first day, but after a day or two of lessons you’ll 5……………… ski quite fast.

Brad:   Lessons? 6……………… I have an instructor?

Alice:   Hmm … yes, I think you 7………………  to have some lessons. You don’t 8………………, but it’s a good idea.

Brad:   I don’t know. It 9………………  be expensive.

Alice:   It 10……………… be. Just a second, my friend is a ski instructor. He 11……………… know a cheap instructor in Switzerland. You 12……………… call him.

Brad:   Great. 13………………  I have his number, please?

Alice:   Er … I 14……………… remember it. But my mum 15……………… know it.

Brad:   Great. 16……………… you ask her?

Alice:   Of course.

Answers

2 could   3 may/might/could   4 have to

5 be able to   6 Should / Must   7 ought

8 have to   9 may / might / could

10 may/could/might   11 may/might

12 should/could/might   13 May/Can /Could

14 can’t   15 may / might   16 Can / Could

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