Образуйте вопросительную и отрицательную форму предложений: 1 He was my best

1. He was my best friend. - Was he my best friend? - He wasnt my best friend.
2. I had some notebooks and pencils in my brief-case. - Did I have any notebooks and pencils in my brief-case? - I had no notebooks and pencils in my brief-case.
3. She goes to the University every day. - Does she go to the University every day? - She doesnt go to the University every day.
4. We work at the research department. - Do we work at the research department? - We dont work at the research department.