1)fill in the gaps with must,mustn’t or don’t have to. his homework. anyone. it’s a secret. any eggs. we’ve got lots. the dog sleep in your bed. the washing-up.

He must  his homework.You don't have to tell anyone. It’s a secret.We don't have to  buy any eggs. We’ve got lots.You mustn't let the dog sleep in your bed.You must do the washing-up.