单项选择题

Questions 21 to 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
What caused the blaze in California

A．A campfire.
B．Smoke.
C．Lightening.
D．Unclear.
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单项选择题
What’s the news about
A．China bans online sale of lotteries.
B．China will issue lotteries on line.
C．China will ban issuing some lotteries.
D．China will ban selling some lotteries.
单项选择题
Which color does Americans often use to express heat
A．Pink.
B．Red.
C．Blue.
D．Black.
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