选出与划线部分单词不属于同类的一项。
(____) 1. I want to be a cook.
A. doctor B. teacher C. people
(____) 2. I can help sick people.
A. sound B. cool C. fun
(____) 3. Is she a farmer?
A. I B. myself C. he
(____) 4. Purple bird fly in the sky.
A. mother B. horse C. turtle
(____) 5. I like pretty clothes.
A. hair B. stories C. vet