Choose the sentences with a similar meaning.
1 It isn’t necessary to get a qualification. You .

You don’t have to get a qualification.
You didn’t have to get a qualification.
You don’t had to get a qualification.

2 Don’t work every night. It’s a bad idea. You . *

You shouldn’t worked every night
You shouldn’t work every night
You can't work every night
3 It’s illegal to drive when you’re fifteen. You . *

You mustn’t drive when you’re fifteen
You can't drive when you’re fifteen
You must drive when you’re fifteen
4 It’s best if older students help younger students.Older students .

Older students should help younger students.
Older children should help younger students.
Older students should beat younger students.

5 Many students eat in the canteen, but it isn’t compulsory. Students. *

Students don’t have to eat in the canteen
Students must have to eat in the canteen
Students didn't have to eat in the canteen