用下面句子中括号部分的反义词或对应词填空完成句子.
（ ）1.Please (stand) up.Don't_____ down,please.
()2.The child is too (young).But his parents are very _____.
( )3.This room is too (small). But that one is very _____.
( )4.Tom and lucy are in the (same) school,but they are in _____grades.
( )5.Linda's hair is very (long),but her mother's hair is too _____