What must they do in these situations? Write questions and answers using must or mustnt.
Maxim is going to a birthday party today.
Sam is ill.
My brother is going to leave early tomorrow.
A man sees a house on fire.
You see a crying child lost in the street.

Maxim is going to a birthday party today.            What must he bring?  He must bring a present.Sam is ill.  What must he do?  He must call the doctor.My brother is going to leave early tomorrow.  Why must he leave early tomorrow?  He is going fishing tomorrow.Must he get up late?  No, he mustn't.Must he go to bed earlier? Yes, he must.A man sees a house on fire.  What must he do?  He must call 911.You see a crying child lost in the street.  Must you bring the child to your house?  No, you mustn't.