单项选择题

Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.
Bob climbed an ice pinnacle

A．to look for his companion.
B．to look for seal.
C．to look for a polar bear.
D．to see the beautiful scene.

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单项选择题

单项选择题

Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. Bob climbed an ice pinnacle 您的浏览器不支持 audio 元素。