Complete the sentences with the correct form of have to/don't have to.

Firefighters have to be careful at work.

Saule doesn't have to work shifts. She is a hairdresser.

Do you have to wear a costume at work?

Police officers sometimes  have to  work shifts.

Kanat has to wear a suit and tie. He never wears jeans.

Does Azat have to start work at 6 am?

Do they have to work full-time?