1) 1. Is there a CD player in the living room?
2. Thete isn't a CD player in the living room
2) 1.Was she born in 1980?
2. She wasn't born in 1980.
3)Was he a good student.
2. He wasn't a good student.
4)Did we stay at home last weekend?
2) We did not stay at home last weekend
5) 1. Did you go to bed early last night
2. You didn't go to bed early last night