1 b
2 c
3 in South America
4 Richard Burton
5 b
6 если считать, что теперь эта организация называется "the European Union", то ответ такой: 28 countries (на данный момент, до Брексита)
7 a
8 a
9 a
10 c
11 German, French, Italian and Romansh
12 Columbus discovered America in 1492
13 c
14 In Charles Perrault's version Cinderella married the Prince as her stepsisters were married to two handsome gentlemen of the royal court.
15 Chernobyl disaster (a nuclear power plant accident)
16 They migrate for food and breeding
17 (моё предположение) She reads the national newspapers, such as The Sun, the Daily Mirror, the Racing Post
18 c