Modal verbs ( necessity / lack of necessity / prohibition)

You --------------------turn off your phone while you are at the bank.

• shouldn't

• don't have to

• should

• have to

When taking a test, we ----------------------- cheat. It is prohibited.

• don't have to

• mustn't

• shouldn't

• can't

I -------------------- wear my ID every class. It is a must. It is among school rules.

• can't

• should

• don't have to

• have to

At school, a student ------------------- wear a school uniform every day. It is obligatory.

• has to

• have to

• should

• must

This is a non-smoking area. , so you -------------------- smoke here.

• mustn't

• can't

• don't have to

• must

It is not necessary to wear a tie. This means that you--------------wear one.

• shouldn't

• must

• don't have to

• should

I----------------------get good grades., so I can go to university.

• must

• have to

• don't have to

• should

The entrance for the art gallery is for free. He--------------------- pay.

• have to

• mustn't

• don't have to

• doesn't have to

We are going to have an accident if you keep driving too fast. You ---------------------- slow down.

• mustn't

• should

• don't have to

• shouldn't

You --------------------- set your phone to a silence mode. It is one of the cinemas' rules.

• must

• have to

• should

• don't have to