What is a good student?

1 with the development of science and technology,our country has more and more contact with the abroad.english is the world language,inevitably,it is very important for the college student to have a good command of english.
2 a good student should be good at his or her major courses,has a good person quality ,be warm-heated ,has a sense of community.
3yes,nowadays,cell phone is not a luxurious thing.college should communicate with others .build a strong relationship with others.so ,it is very necessary