函数y=$\frac{\sqrt{x+2}}{3}$中，自变量x的取值范围是____ 

选择方框内的单词，并用其适当的形式填入空白处，使内容意思通顺，语法正确。

    Linda is from ____. She is thirteen. Her sister's name is Sally. She is only five ____ old. Linda is in No.2 Middle School. She is a good student. She ____ beautiful eyes. They are big and black. She is a good football player. Her ____ star is David Beckham(大卫·贝克汉姆). Her father is a teacher. Her mother is a teacher, ____. They have a big house and a car. She has a happy family(家庭).