MUST-MUSN'T

You __________ use cellphones while driving a car

• must

• is

• musn´t

• am

You __________ feed the animals at the zoo

• is not

• musn't

• do not

• must

You __________ wear a school uniform at school

• must

• musn't

• wear

• are not

You __________ park here

• can

• musn't

• is

• must

You __________ do the homework

• doing

• musn't

• must

• homework

You __________ make your bed

• make

• musn't

• you

• must

You __________ go

• go

• musn't

• must

• wear

You __________ light a fire in the forest

• fire

• musn't

• forest

• must

You __________ smoke

• can

• musn't

• read

• must

You __________ use recycling materials

• use

• musn't

• must

• recicling