Students have responsibility to learn well and pay more attention to learning.If a long readingassignment is given, 56_(instruct)expect students to be familiar 57 information in the reading even if they do not discuss it in class or take an examination. The ideal student 58 (consider)to be one who is motivated to learn for the sake of learning not the one interested only in getting high 59 (grade).Sometimes homework is returned with brief 60 (write)comments but without a grade.Even if a grade is not given, the student is responsible for learning the material distributed.When research is distributed,the professor expects the student to take it 61 (active) and to complete it with minimum guidance.It is the students' responsibility to find books in the library.Professors do not have the time_62 (explain)how a university library works. Professors will help students 63 need them,but prefer that their students should not be too dependent on them.In the United States,professors have many other duties besides 64(teach),such as regulative or research work.Therefore,the time that a professor can spend with a student outside of class is limited.If a student has problems with classroom work,the student should either approach a professor during office hours 65 make an appointment.