阅读短文，选择正确的答案。
It's a Sunday morning. Mr Su's family are at home. They don't go to work or go to school today. Look, Mr Su is in the study. He is reading a newspaper. Su Hai is in her bedroom. She is cleaning the windows. Where is Su Yang? She is in the bedroom too. She is sweeping the floor. Now their bedroom is very clean. Mrs Su is in the bathroom. She is washing the clothes . Look, what's on the sofa? It's their cat, Mimi. It's sleeping.
