Choose the correct answer.

1 They ..... to win all their matches.
A could
B were able
C had

2 You ..... be late for school because you'll get into trouble.
A mustn't
B may not
C don't need to

3 I feel tired; I ..... to get some sleep.
A need
B must
C can

4 You ..... let your children go swimming alone as they might get hurt.
A aren't allowed
B can't
C shouldn't

5 When I was 16, l ..... go out with my friends at night.
A might
B could
C should

6 You ..... be Australian to take part in the Sydney to Hobart Yacht Race.
A can't
B mustn't
C don't need to

7 Don't play with matches because you ..... start a fire.
A might
B must
C need

8 I ..... walk to work, Tom drove me there.
A wasn't able to
B didn't have to
C couldn't

9 Campers ..... check out of the campsite by 12 noon. It's the rule.
A must
B might
C should

10 I ..... go to the supermarket yesterday to buy things for the party.
A must
B had to
C could

11 You ..... let your children go swimming alone as they might get hurt.
A aren't allowed
B can't
C shouldn't

12 Don't play with matches because you ..... start a fire.
A might
B must
C need

13 Campers ..... check out of the campsite by 12 noon. It's the rule.
A must
B might
C should

14 They ..... to win all their matches.
A wasn't able to
B were able
C had


15 I ..... walk to work, Jason drove me there.
A wasn't able to
B didn't have to
C couldn't

16 You ..... be late for school because you'll get into trouble.
A mustn't
B may not
C don't need to

17 When I was 16, I ..... go out with my friends at night.
A might
B could
C should

18 I ..... go to the supermarket yesterday to buy things for the party.
A must
B had to
C could

19 You ..... be Australian to take part in the Sydney to Hobart Yacht Race.
A can't
B mustn't
C don't need to

20 I feel tired; I ..... to get some sleep.
A need
B must
C can​