What must they do?
They must sweep the floor
What must they do?
They must feed the cat / They must feed the pet
What must you do?
We must wash the dishes / We must do the washing up / I must wash the dishes
What must the girl do?
She must get up.
What must they do?
They must do the shopping
What must they do?
They must tidy the room
What must he do?
He must / should wash up the clothes / He must do the laundry
What must they do?
They must put out the garbage / They must take out the garbage/rubbish/trash
What must he do?
He must drink water
What must the monkeys do?
They must clean the car / Monkeys must clean the car
What must they do?
They must put out the garbage / They must take out the garbage/rubbish/trash