The key answer of exercise 2

a)

1. One of the most interesting of things about my job is the people I meet.
2. I haven’t seen my parents for five years.
3. I studied geography at university so I know a lot about different countries.
4. I haven’t told anybody about my hobby.
5. It's difficult to find work these days.
6. I've been to Spain many times in the last few years.
7. Do you think it's warm enough for me to go without a coat?
8. I adore living by the sea.

b)

1. 3
2. 7
3. 4
4. 2
5. 5
6. 8
7. 6
8. 1