Grammar Book - Jeanne Perrett 2002

25 Must/Саn for permission

1 Write questions.

1 buy an ice cream Can I buy an ice cream, please?

2 sit next to Jenny ...

3 go to the toilet ...

4 go in the sea ...

5 clean the blackboard ...

6 open the window ...

2 Write True/False.

1 Children must write on the walls at school. False

2 Children must eat lots of cakes and sweets. ...

3 Teachers must sing songs with children. ...

4 Teachers mustn't play games with children. ...

5 Children mustn't speak in their English lessons. ...

6 Teachers must give children tests every day. ...

3 Write You must/You mustn't...

1 Don't run in the road.

You mustn’t run in the road.

2 Don't sit in the sun all day.

3 Wear a hat in the summer.

4 Don't eat ten ice creams.

5 Read lots of books.

6 Clean your teeth.

7 Don't drink lots of cola.

8 Play sports every day.

4 Write sentences. Use must/mustn't.

1 Children must drink lots of milk

2 ...

3 ...

4 ...

5 ...

6 ...

7 ...

8 ...

5 Write My teacher/My doctor.

1 You mustn't go out.

My doctor.

2 You must do your homework.

3 You can clean the board.

4 You must drink lots of orange juice.

5 You can't go to school today.

6 You must do all the exercises.

6 Write questions and answers.

1 go swimming ✓

Can we go swimming? Yes, you can.

2 have ice cream for breakfast X

3 have a party on Saturday night ✓

4 go to bed at one o'clock in the morning X

5 watch TV in our tents X

6 play volleyball in the evenings ✓

7 Jack is a football player.

Write sentences with must/mustn't.

1 He must run very fast.

2 ...

3 ...

4 ...

5 ...

6 ...