The key answer of exercise 5

a)

1. kidnapping
2. kidnap (sb)
3. shoplifter
4. pickpocket
5. burglary
6. mugger
7. robber

b)

• A burglar is someone who burgles someone’s home.
• A kidnapper is someone who kidnaps somebody in other words takes someone hostage and demands money for their release.
• A shoplifter is someone who shoplifts or steals from a shop.
• A pickpocket is someone who picks somebody's pocket or steals somebody's wallet / purse.
• A mugger is someone who mugs somebody in the street.
• A robber is someone who robs a bank.
• A thief is someone who steals something.