BLANK FILLING
Choose 10 answers from the box and write the correct letter in the blanks 31-40 on the ANSWER SHEET. (20 points, 2 points each)

1. Since the London smog in 1952,  have been introduced in most cities in the UK. 

2. During the English Civil War, the King's men were called Cavaliers, and the supporters of Parliament were called .
3. The foreign-born element of the British population is concentrated in , and more than half live in Greater London.
4. As a result of WWⅠ, the US changed from a debtor nation to a .
5. The area along the Ohio River is well-known for its  industry.
6.  is recognized as the agricultural capital of the US.
7. Canada's highest point, , rises nearly 6,000 meters above sea level.
8. A combination of physical barriers and a scattered population has led to a strong sense of  in Canada.
9. The central region of Australia is called  or "Bush", which is home to very few people.
10. In 1918, a political group known as  established an independent Irish Parliament under the leadership of Eamon de Valera.