Use the Past Perfect Passive forms. Model: table/lay THE TABLE HAD BEEN LAID BEFORE MOTHER CAME. 1.the pizza/send for 2.the flowers/water 3.the cake/make 4.the bread/buy 5.the guest/take care of 6.the dining-room/air

The pizza had been sent for  before guests went away The flowers had been watered before I went to sleep The cake had been made before I met my friends The bread had been bought I read the story The guest had been taken care of my pets before I came back home The dining-room had been aired  before my parents arrived