ответить на эти вопросы. does your friend have to change shoes in his or her school? do you have to wear slippers inside the school? do you have to stand up when you answer? do you and your classmates have to clean and tidy your classroom at the end of the day? does your friend have to study more than ten subjects?

 Does your friend have to change shoes in his or her school?-Yes,he does have to.
Do you have to wear slippers inside the school? No,I don"t have to.
Do you have to stand up when you answer? Yes,I do 
Do you and your classmates have to clean and tidy your classroom at the end of the day? no,we don't have to.
Does your friend have to study more than ten subjects?No,he doesn't have to.