What is the most important thing or feature for a teacher or to-be-teacher?

What are the two kinds of test for students?

First notebook entry: Introducing myself Hello, everyone. My name is Liu Zhenghui and I come from Shaoyang, Hunan Province. My English name is Diana. When I was young I like English very much. So I go to college, which is located in Guilin City, to study Enlish. After some experiences of learning English, I found that it's really necessary to speak English in a real situation.