Hi! I'm trying to find a school book from the late '60's or very early 70's. Probably a second grade reader but I'm not certain. It has multiple stories and the one I remember is about a married couple of pigs trying to sell their house. Each animal that comes to look at it suggests something they would like changed about the house. The pigs change each thing and by the end of the story they don't want to sell their house anymore. Does anyone remember this book? It was read with the classic Dick and Jane books for sure.