I. Use to where necessary.
1) You mustn’t go there. It’s not safe.
2) Doctors say we should___ eat more vegetables.
3) I may do this test next lesson.
4) Can I use your bike?
5) She has buy a new phone.
II. Fill in must/ mustn’t.
6) You go to bed very late.
7) You sleep at the lesson.
8) You look after your pet.
9) You eat ice-cream in a shop.
10) You tidy your room.
III. Fill in: have to/ has to/ don’t have to /doesn’t have to.
11) You wash the dishes after dinner.
12) Tom cook breakfast. His mum does it.
13) They phone me. I know everything.
14) She is too lazy. She work harder.
15) I stay in the office all day because I have a lot of work.
IV. Fill in the modal verbs: can, can’t, may, must, should
A) – Sir, 16) I come in?
- No, you may not. You are late. You 17) come to class earlier.
B) – Tom, 18) you help your mother now?
- Yes, dad. By the way, I always help her. I know that children 19) help their parents.
C) – Jane, your granddad is ill. He is in hospital. You 20) visit him. 21) you do it today?
- No, mum, I 22). I’ll go there tomorrow.
