单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now listen to the conversation.
Why are the events important

A．They could be a sign of global warming.
B．They are disturbing Antarctic bird habitats.
C．They have destroyed research facilities.
D．They refute current scientific theories.

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单项选择题

The hijackers had demanded

A．over one million dollars and a helicopter.
B．over one million dollars to help drug-addicts.
C．over a million dollars’ worth of drug.
D．over one million dollars to buy a helicopter.

单项选择题

What might happen to the drivers who illegal substances

A．They will be sent to a laboratory.
B．They will lose their licences.
C．They will be fined and could lose their licences.
D．They will be sentenced guilty.

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation. Why are the events important 您的浏览器不支持 audio 元素。

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now listen to the conversation.
Why are the events important