Can I say,<br/><br/>(A) They have known each other when they are seven years old.<br/><br/>(b) They live next to each other in a neighbourhood. <br/><br/>(c) They read / study in the same class. <br/><br/>(d) They always discuss when they have each other problems. <br/><br/> They always discuss when they have troubles. <br/><br/> They always discuss when they meet problems. <br/><br/>(e) They hope their relations forever.