单项选择题

Passage One Questions 26 to 28 are based on the passage you’ve just heard.

A．The western area near the coast.
B．The central mountainous region.
C．The eastern forests and jungles.
D．The west coast of South America.

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单项选择题

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When ______, the problem of unemployment will arise.

Passage One Questions 26 to 28 are based on the passage you’ve just heard. 您的浏览器不支持 audio 元素。