Modals of obligation

You ___ go swimming! It's dangerous!

• mustn't

• don't have to

• have to

• doesn't have to

You ___ take an aspirin if you have a strong headache.

• has to

• should

• shouldn't

• mustn't

This is a ___?

These are ___.

"I don't want to go to the match with you." "It's okay, you ___ go if you don't want to.

• shouldn't

• don't have to

• doesn't have to

• should

You ___ call them this late. They're probably sleeping!

• should

• don't have to

• have to

• shouldn't

You ___ forget to turn off the water when you leave the bathroom!

• mustn't

• should

• have to

• don't have to

They ___ be more careful - there are many scary animals in that forest.

• don't have to

• should

• mustn't

• has to

These are ___.

"Is there anything to eat?" "Yes, there ___ be some food left in the fridge!

• have to

• shouldn't

• mustn't

• should