Obligation

I think people who live in apartments ... have dogs.

• ought to

• mustn´t

• have to

• shouldn´t

Choose the correct sentence.

• You doesn’t have to hurry, but you mustn’t be late.

• I didn't had to go to the airport before 10 am.

• I have to wear a helmet while driving a motorcycle.

• You have to stopped when you see the red signal light.

Complete the sentence.

It is absolutely _____ that the two liquids are kept separate, otherwise a chemical reaction could trigger an explosion.

• essential

• vital

• imperative

• need

Choose the wrong sentence.

• Doctors sometimes have to work on Sunday.

• He doesn't have to wear a suit to work but he usually does.

• I don’t have to clean my room every day.

• Teachers doesn’t have to work on Sunday.

You .... come within guest hour if you want to see your friend in a hospital.

• must not

• Have to

• Must

• don't have to

Your daughter …… stop eating sweets. It’s not good for her health.

• Should

• Shouldn't

• Must

• Mustn't

They ........ park here. There's "NO PARKING" sign

• Have to

• Has to

• Must not

• Should not

Complete the sentence.

If you cause any damage to property, whether accidentally or on purpose, you will be held _____ for any costs incurred.

• liable

• forced

• exempt

• Mandatory

I think you ...... visit my parents this weekend. They said they miss you.

• have to

• should

• don't have to

• should not

We …. Have driving license to drive a car.

• Must

• Shouldn’t

• Mustn’t

• Should