Ex. 6 a
1. When did Michael Jackson die?
2. When did the first man walk on the moon?
3. Neil Armstrong didn’t walk on the moon in 1979, it was 1969.
Ex. 6 c
1. I arrived late. I didn’t arrive late.
2. You used my computer. You didn’t use my computer.
3. We watched the film. We didn’t watche the film.