Page 20 - Grasp English B1 (Grammar Book)

3 Rules at School

A. Complete the sentences using must/mustn’t/have to/don’t
have to.

1. It is forbidden. You enter that room.
2. You ask my permission. You can get
whatever you want from my wardrobe.
3. You speak to the driver when the car
is moving. It’s dangerous.

4. Help yourself to anything you want. You
ask.

5. Pay me back when you can. You do it
immediately.
6. It’s optional. We join the club if you don’t want to.
7. I’ll tell you a secret. You tell anybody else. Promise?
8. Whatever you do, you click with the right mouse button or the program will
crash.
9. Be on time. You be late or we will leave without you.

B. Complete the following sentences with the modal verbs below.

have to x2 has to had to will have to must x2

1. Alan was the manager of the company, so he deal with the staff’s problems.

2. Frida: Do I see Mr Kelington before the exam?
Betty: Yes, you see him. He will give you some important documents.
3. Passengers finish the check-in process at least one hour before the flight.
4. Nina has a job interview early in the morning, and she go to bed now.
5. You see Dr White after the operation. It’s an emergency.
6. I stop eating junk food. I’m getting fatter every day.

18 Grasp English B1 Grammar Book © Prime Press, 2021 | www.primepress.com