Read the text and answer the questions. Cheese, did you know?.. When milk turns sour or curdles, it separates into a thin, runny liquid and white, fatty lumps. The liquid is called whey and the lumps are called curds. The curds are used to make cheese. It takes approximately ten litres of milk to make one litre of cheese. Cheddar, one of England’s oldest cheeses, is made from cow’s milk. The cheese originates from the village of Cheddar in Somerset, southwest England. Cheddar has been produced since at least the 12th century. Cheddar was actually considered a luxury product until the 19th century when Joseph Harding, a Somerset dairyman, invented a cheese mill capable of mass production. Cheddar is ripened for up to two years. The French cheese, brie, on the other hand, takes only a month to ripen. Swiss cheese is full of holes. Bacteria in the cheese give off bubbles of gas, which make the holes. Thanks to cartoons, many children think the holes are made by mice! Cheese-makers often combine cheeses to make new ones. 11. How many parts does milk separate into? A) Two B) Three C) Four D) Five 12. When does milk start separating? When it goes … . A) sweet B) salty C) bitter D) sour 13. What are the lumps called? A) Liquid B) Whey C) Curds D) Fat 14. How much milk is needed to make one litre of cheese? About … litres. A) 1 B) 2 C) 5 D) 10 15. Where was cheddar cheese first made? In the … of England. A) south B) west C) southwest D) northeast 16. When did they begin to make it? … century. A) In the 12th B) In the 19th C) In the 11th D) In the 17th 17. When did cheddar start to be produced on a large scale? … century. A) In the 12th B) In the 19th C) Before the 12th D) Before the 19th 18. How long does it take cheddar to be ready? A) A month B) Two months C) A year D) Two years 19. How long does it take brie to be fully developed? A) A month B) Two months C) A year D) Two years 20. Which of the above-mentioned cheeses is full of holes? A) American B) Swiss C) French D) English