UNIT 4. BROADEN YOUR MIND! » Стр.228 (9)

Give the corresponding words for the following definitions. 1. to consist — to make up; 2. a citizen — a person who lives in a town or country; 3. the border — a line separating two countries; 4. channel, strait — a narrow passage of water connecting two seas; 5. highland — a mountainous country; 6. a tributary — a river which flows into another rive; 7. source — a starting point of a river; 8. a ridge — a chain of mountains.