1.Are we students ?-Yes we are; No we are not
2.Were they at the stadium ? - Yes they were; No they were not
3. Does my father draive the car ? - Yes he does; No he does not
4.Have we the exam ? - Yes we have. No we have not.
5.Did children played the game ? - Yes they did; No they did not
6. I know them ? - Yes i know them; No i does not know them
7.Did i my work ? - Yes i did; No i did not