Choose the right sentence. 1.When I am a pupil of primary

1. When I am a pupil of primary school, I study simple subjects and how to write and count.

2. When I am a pupil of secondary school, I study more difficult subjects, such as algebra, geometry, physics and others.

3. When I am a student of senior school, I study a lot of different subjects and prepare for my exams. Then I can enter any institute and university I want. Thats why I try to do my best in studying.