在括号里选择合适的单词填到横线上，使短文意思完整。（每词限用一次，共10分）

Welcome _____ our school! _____ is the teacher’s ______. That is my ________. ______ are 45 students in my ______. We have lunch _____ school. The canteen is on the ______ floor. We have a library _____ a playground, too. Our school _____ beautiful.