재귀 대명사 설명요

i even circle the point value of each part to pace myself during the test

myself 와 같은 용법을 찾는 것인데 정답이 4번입니다. 왜죠?
1. i burnt myself
2. i talked to myself
3. i was proud of myself
4. i did it myself
5. i love myself best

there are some students who actually do work magic-they get good grades on tests
do 와 같은 용법은
1. i do finish reporting the result
2. my brother likes pizza, and i do, too
제가 생각하기론 1 번 같은데 정답이 2번으로 나왔네요 왜죠?