You'd better back .....! I'm sick of you picking on me and I'm really going to hurt you if you don't stop bothering me. (*) on (*) over (*) off (*) in
This is a companion discussion topic for the original entry at https://english.best/questions/19764,youd-better-back-___-im-sick-of-you-picking-on-me-and-im-really-going-to-hurt-you-if-you-dont-stop-bothering-me/