The key answer of exercise 5

a)

1. c
2. e
3. b
4. h
5. a
6. f
7. d
8. g

b)

1. This type of car is becoming less and less popular.
2. The standard of teaching seems to be getting worse.
3. The town's importance is slowly decreasing.
4. Fewer and fewer people are taking holidays abroad.
5. We have more and more time to ourselves these days.
6. Julio's English seems to be slowly getting worse.
7. The difference between the two groups is becoming more and more blurred.
8. The days are getting shorter and shorter.