Modals of Obligation

1) We have a lot of work tomorrow. You _______be late.

• must

• mustn't

• don't have to

• have to

You ______ tell anyone what I just told you. It's a secret.

• must

• mustn't

• should

• haven't to

She _____ do this work today, because she can do it tomorrow.

• doesn't have to

• has to

• have to

We _____ forget to lock all the doors before we leave.

• don't have to

• must

• mustn't

• doesn't have to

You _______ go to the ceremony if you don't feel like it. It'll be very boring anyway.

• mustn't

• haven't to

• don't have to

• have to

The refugees _______ to work outside the camp.

• mustn't

• are not allowed

• have

• can

Fill in the blank with one appropriate modal.

You (a)   stop when the traffic lights turn red.

Fill in the blank with one appropriate modal.

People (a)   drink and drive cars. It is prohibited.

I'd love to come to the cinema but I _____ hand in this assignment tomorrow.

• must

• have to

• can

• could

You _____ memorise the whole thing. Just try to remember the key points.

• can

• don't have to

• have to

• mustn't