根据短文内容判断句子正误。

Our school is not big. It was built in 1989.There are about 500 students in it. There are 37 students in our class. 17 are boys and 20 are girls. We have a nice computer room and a big school library. The computer room is on the third floor. The school library is on the first floor. Our class is on the second floor. Our teachers are all good teachers. They love their jobs and students. We all like our school very much.