1. (i) age
2. Losing one’s teeth is just one of many things that will happen to the human body when a person gets older.
3. i) F ii) NG iii) T
4. If you had to run away, you had something worth a lot of money in your mouth
5. There were a lot of Japanese sex workers in port cities. They were willing to pay to fix their teeth so that they wouldn't lose customers.
7. Most large provincial towns in Asia had at least one Japanese dentist.
8. photographic studios, restaurants and hairdressers; people thought they were spies
9. They couldn't get accreditation, but the law was less strict in Kowloon Walled City.
10. There was a shortage of professional, affordable dental treatment in Hong Kong. Now a majority of dentists who work in Hong Kong are trained there.