Поставте следующие предложения в вопосительную и отрицательную формы. 1.lectures and labotatory works are organized at university ievel. 2.before 1970 all oxbridge colledges were separate for men and women. 3.only pupils who do well at a-level may go to university. 4.universities normally select students on the basis of a-level results and interview. 5.evry student has a tutor in charge of planning his work and discussingits results with the students.