CR Level 3 Questions

Hi guys so I’ve being practicing the CR for a while now and I’ve found an interesting trend: a lot of questions that I got wrong are level 3 questions. Now don’t get me wrong I’ve had my troubles with level 4 and 5 as well but I feel that level 3s are the ones that took me the longest to do. I think its probably because they look like a level 4 or 5 question but only has a level 3 answer. I don’t know if anyone else has this problem. While we are on the subject, does anyone know a good way to find evidences in a passage to back up their answers? Because something its all about asking the right questions about a phrase or a word in the passage. Thanks.