.(Use must or mustn`t 1)you go out. it is raining heavily. 2)your room is messy. you do your room and wash the floor.).

1)You mustn`t  go out.It is raining heavily. 2)your room is messy.You must do your room and wash the floor.

You mustn't go out. It is raining heavily. 2) Your room is messy. You must do your room and wash the floor.