Write idioms as required and answer as soon as possible

Three-character idiom: (prank)

/question/5495840.html

Five-character idiom: (gone never to return) /question/11171011. html

Six-character idiom: (There is no greater sorrow than heartbreak)

/f?kz=153453630

Seven-character idiom: (Only paying attention to clothes but not people )

Eight-character idiom: (Don’t do to others what you don’t want others to do to you/Being a monk for one day will hit the clock)