Составь те предложение со словом "must". have/has to,  need,  can, don039;t/doesn039;t 

I can play the piano.
My brother can't come and help me in the garden.
You must work hard on your English.
You mustn't talk at the lessons.
I have to go to the theatre.
I don't have to go there.
You need to go to the restroom.
She thinks that she doesn't need to go to the church.