一根据句意补全单词：
1.PE stands for p__________ e___________.
2.I’m an English teacher in a s___________school.
3.Is everyone p_________ n ow?—No.Lin Tao is a_________.
4.We have g__________ and b________ in Grade 2 but I’m not interested in them.
5.It’s r_______ nice of you to help me.
6.I saw two girls at the door,but n_______ is my sister.
