1. Who has been working hard for the whole term to pass exams successfully?
2. What is necessary for this experiment?
3. Who is writing a report in Physics now?
1. There are not many English classes in our curriculum.
2. The teacher doesn't always come to class late.
3. The students didn't make many mistakes at the last lesson.
4. We haven't seen the film about London three times.
5. We were not preparing for a seminar at that time last Saturday.
Trains will not be conducted by an automatic driver according to the schedule.