单项选择题

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

A．They are unconquerable obstacles.
B．They do not exist.
C．They are challenges to improve the city life.
D．They are exciting and interesting.
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单项选择题
A．Catch a later train.B．Put the telephone near the bed.C．Wake up as early as he can.D．Ask the hotel staff for help.
A．Catch a later train.
B．Put the telephone near the bed.
C．Wake up as early as he can.
D．Ask the hotel staff for help.
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