Answer key. Exam practice (page 101, Workbook)

EXTRA PRACTICE 4 (page 101)

Exercise 1

1.c

2. b

Exercise 2

1. It's false because: " You could even power two mobile phones on the energy needed to maintain a goldfish."

2. It's false because: "Other suggestiosn include...using only environmentally-friendly products for washing animals...".

3. It's true because: "choose a local vet to avoid the pollution that results from driving."

Exercise 3

1. It is more harmful to own a pet that (to) drive a jeep.

2. This will also help in prolonging its life.

3. People should give the same sort of care to selecting a pet.

Exercise 4

1. harmful

2. power

3. beneficial

4. prolong