Have to /must/should/ought to

If you go to the gym you _______ to wear a mask.

• must

• have

• should

Can you give me some pieces of advise. Of course, you _________ be more sociable.

• should to

• should

• ought

You ______________ drink that. It's chlorine.

• don't have to

• mustn't

It's an informal party, you __________________ to wear a tie. It's not necessary.

• don't have

• mustn't

You _________________ to wash your teeth after eating.

• should

• has

• ought

At school she ____________ to wear her uniform.

• has

• must

• have

A: I have a headache. B: You ______________ take an aspirin.

• should

• ought

• have

You ________________ copy in the exam.

• don't have to

• mustn't

• should

You _____________ to tell your parents. If I were you I'd do it.

• has

• ought

• must

• should