The key answer of exercise 2

1

1. 999
2. They are calling about things that aren’t emergencies. Children are calling accidentally.
3. sending out leaflets and introducing fines

2

1. He fell off his bike and hit his head.   
2. He needed to make a hole in the boy’s head. He didn’t have a medical drill.   
3. He had never done the operation before so he phoned a colleague.

3

1. He was in a pub in England.   
2. A spider bit him.   
3. It was poisonous and twelve centimetres long.  
4. Experts used it to identify the type of spider and find an antidote.