单项选择题


Questions 14 and 17 are based are the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
The speaker worried more about ______ pollution.

A．light
B．water
C．sound
D．air
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单项选择题
Who is Ken Livingstone
A．The Mayor of London.
B．The President of Cambridge.
C．The Mayor of New York.
D．The President of Harvard.
单项选择题
When he was sixteen, Hitchcock found his talent for ______.
A．film-making
B．writing
C．acting
D．drawing
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