Ex 1:
1.No, he didn't.
2. She was knocked down at a zebra crossing.
3. Yes,they did.
4. The ambulance arrived about ten minutes later.
5,They used a handkerchief to cover the wound,then put pressure on it and held it tight.
Ex 2:
1,The writer is in the hospital.
2. He had broken his leg.
3. Yes,it does mean "awful".
4. Yes,he has.
5. Yes,I did