1 Mr Smith is our English teacher ( )is English.
2 my mother.(1)name is Liu Mei.She is my mother and father's (2).
I'm behind my father.My name is Liu Pin.I'm Liu Mei's(3),my(4)son.
Liu Mei and I are students.We are in No.2 Middle School.
大家可已按1=（ = （ )来回答,