The responsibility of the student

  Education is the very thing that we want to receive. Our parents send us to school so as to enable us to get (obtain) knowledge and achieve great things in the future. The following are the duties of a student (which) we should keep in mind.
  In the first place, we should be filial to our parents and respectful to our teacher.
  In the second place, we have to (must )study as hard as we can.
  In the third place, we must not tell lies.
  Last of all, we must not criticize others.
  To sum up, the above-mentioned rules are the very duties of a student.