B)In the 1960s. C)In the 1950s. D)In the 1940s.Questions 19 to 21 are based on the passage you have just heard. 19.A)Its construction started before World War I. B)Its construction cost more than 40 billion. C)It is efficiently used for transport. D)It is one of the best in the world. 20.A) To improve transportation in the countryside. B)To move troops quickly from place to place. C) To enable people to travel at a higher speed. D)To speed up the transportation of goods. 21.A) In the 1970 s. B) In the 1960 s. C) In the 1950 s. D)In the 1940 s.

Questions 16 to 18 are based on the passage you have just heard.-|||-16.A)Whethe

Passage TwoQuestions 19 to 21 are based on the passage you have just heard.A. Th

Passage 2Questions 19 to 21 are based on the passage you have just heard.(1) (单选

Questions 19 to 21 are based on the conversation you have just heard.Questions 1

Questions 19 to 21 are based on the conversation you have just heard.A. The two

Passage TwoQuestions 19 to 21 are based on the conversation you have just heard.

Passage Two Questions 29 to 31 are based on the passage you have just heard.A.

The airport was constructed in the 1950s. It has an indoor garden, a children’s

Questions 19 to 22 are based on the recording you have just heard.19.A. It uses

Passage One(1) (单选题)Questions 16 to 18 are based on the passage you have just he