A plan for your mother or father’s birthday

A plan for My Monther's Birthday
My Monther's birhday is on this Sunday.I have made a plan for birthday party.On Sunday,I will get up early and go shopping with my father.We are going to buy a big cake and some flowers.Besides,I think we also need some other items for the party.Then in the afternoon,I will ask my father to go outside with my mather.I will stay t home to make arrangements.When they come back,my mother will be surprised.So,this is my plan for my mother's birthday.I hope we will have a good party on Sunday.
不知道你上几年级,写的尽量简单些了,