单项选择题

Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．Burning them completely.
B．Keeping them where they are.
C．Changing them into fertilizer.
D．Using them to cover lawns.
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单项选择题
A．He will be charged with a minor driving violation.B．He will be put in prison for fifteen days.C．He will be fined a large amount of money.D．He will not be allowed to drive a bus in the county.
A．He will be charged with a minor driving violation.
B．He will be put in prison for fifteen days.
C．He will be fined a large amount of money.
D．He will not be allowed to drive a bus in the county.
单项选择题
How much genetically modified corn was planted in the US last year
A．More than half.
B．65 million acres.
C．One third.
D．Three quarters.
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