Составить 5 предложений с модальным глаголом must !

You must clean your room.
He must wash the dishes.
We must stay alone.
They must do their homework.
I must write in my copybook.

You must do exercises every day to keep fit and be healthy.
You mustn't go home from school before lessons are over.
You must be a good person. (Ты, должно быть, хороший человек)
Teacher must explain everything that pupils ask him\her about.
Children must respect their parents.