1) Classes in the Institute usually start at half past nine in the morning.
2)Good students usually passexams in time.
3) Students usually have lectures,classes,and carry out experiments on weekday.
4)On Sundays the Institute always is closed.
5)Students quite often ( occasionally , very often , don't very often ) attend the Institute library and reading halls.
6) A supervisor often ( usually) helps students to prepare their course and diploma papers.
7) A student never ( hardly ever ) does get a bad mark for an excellent answer.
8)The results of students' diploma don't very often ( sometimes ) works find practical application.