You're a good a boy改成否定句意思不变?

把 You are a good boy.变成否定句． you're a good girl ./Tom is a good boy . 什么意思 You're a Good I am a beautirful gril.（改成一般疑问句,意思不变）和(否定句) Buddy you're a boy He is a good boy（改否定句） She has a good friend 改成否定句 They have a good breakfast at home(改成否定句) Mary had a good time yesterday 改成否定句 Good boy ! You're doing such a good job of_____materials for You're a boy ,aren't you? 韩英郁是女生.改成否定句,意思不变.改成双重否定句,句意不变!