Welcome to my new school. It's very beautiful. But it ( was/is) very small 3 years ago. Now it's much ( big/bigger) than before. Look at our playground, we often ( play/ played ) sports there after school. This is ( us/ our ) computer room. There ( was/ were ) no computers in our old school. Look there! The ( student/students) are ( playing/having ) a music class now. They （are/ was）very happy.
