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 _____ stop when the traffic lights turn red.

Fill in the blank with one appropriate modal.

People _____ 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