have to/ must/ can

can/can't or must

100

There is no homework, so I ______ go out with you this afternoon.

can

200

You ____ go to the doctor if you are very ill.

must

300

Anne _____ ride a bike because she is only two years old.

can't

400

You _____ play on the road. There are a lot of cars.

mustn't / can't

necessity or obligationhave to/don't have to

100

At school, we ____ wear uniforms. We can wear jeans.

don't have to 

200

You ____ wear swimming suits in the public swimming pool.

have to / must

300

you ____ wear boots when it rains, but your feet will probably get wet.

don't have to 

400

You _____ read a lot of books if you want a degree in English literature.

have to / must

obligationmust/mustn't/have to/don't have to

100

You ____ turn on the central heating. It's automatic.

don't have to

200

I can't fail the exams. I ____ study harder.

must/have to

300

You _____ forget your documents. You need them to get on the plane.

mustn't

400

Students _____ listen to the teacher, or they won't understand.

must / have to

mixed

100

You ____ cross the road when the red light is showing.

mustn't

200

Sorry, I ____ go now or I will be late.

must / have to

300

I ____ wear glasses because I can't see without them.

have to/must

400

I ____ see without glasses. I've got bad eyesight.

can't