Both of my parents中的of可以省略吗?my parents 是名词吗?

Both of my parents中的of可以省略吗?my parents 是名词吗? Both of my parents( )my studies 翻译 Both of my parents are teachers. 翻译 Both of my parents are teachers. 求问Both of my parents中的of可以省略吗? both和both of 是什么区别啊?both of my parents和both my parents什么区别 Both of my parents are teachers(否定句） （ ）（ ）of my parents ( ) ( ) ( ) Both of my parents can speak English.(改成否定句） ------of my parents -------- speak English Both of my parents can speak English.改为否定句 Both of my parents are teachers(同义句) Both of my parents are workers.同义句 Both of my parents are doctors.(改为否定句) My parents ______ both teachers Both of my parents are doctors.(变否定句） ———of my parents ______a doctor. Both of my parents have been to britain(改为否定句)_____ of my parents _____been to britain Both of my parents gave me presents .(改为否定句）__ of my parents ___me presents . Both of my parents were born in 1970.Both my parents were born in 1970 .My parents were both bornIN 1970,请教高手both的这三种用法都对吗? Both of my parents are English teahers.(改否定句_____of my parents _____ an English teachers.