1) A teacher _________ prepare lessons. a) has to b) doesn't have to 2) Firefigthers _________ rescue people. a) don't have to b) have to 3) A waiter _________ wash dishes. a) has to b) doesn't have to 4) Students _________ do homeworks. a) have to b) don't have to 5) A scientist _________ clean houses. a) doesn't have to b) has to 6) Your mom _________ work every day. a) has to b) doesn't have to 7) A police officer _________ catch criminals. a) has to b) doesn't have to 8) You ____________ to clean your room twice a week. a) don't have to b) have to 9) A nurse _________ paint pictures. a) doesn't have to b) has to 10) Astronauts _________ take pictures of the planets. a) have to b) don't have to 11) I ___________ take a shower every day . a) have to b) don't have to 12) She _____________ brush your teeth thee times a day.  a) has to b) doesn´t have to

4Tu9 Have to / Don't have to

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