Find the relative clause. whom is the man you are looking for: the man who stole the necklace, or the one with the earrings?

is basically a good source of getting and others by what you know for example if someone asked a question and you know the answer you could answer it and get some points or if you need on a question you could make a post about it and wait till someone answers it or just look up the question and see if someone else has asked about it