单项选择题

A．Pollution of the environment.B．A new generation of pe……

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

A．Pollution of the environment.
B．A new generation of pest killers.
C．Over-killing by hunters.
D．Destruction of their natural homes.

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热门试题

单项选择题A．Only one out of four girls cries less often than boys.B．Of four boys, only one cries very often.C．Girls cry four times as often as boys.D．Only one out of four babies doesn’t cry often.

A．Only one out of four girls cries less often than boys.
B．Of four boys, only one cries very often.
C．Girls cry four times as often as boys.
D．Only one out of four babies doesn’t cry often.

单项选择题A．The son.B．The father.C．The mother.D．Aunt Louise.

A．The son.
B．The father.
C．The mother.
D．Aunt Louise.

单项选择题A．Most Londoners were frightened.B．Most Londoners became rather confused.C．Most Londoners took Exercise Floodcall calmly.D．Most Londoners complained about the trouble caused by Exercise Floodcall.

A．Most Londoners were frightened.
B．Most Londoners became rather confused.
C．Most Londoners took Exercise Floodcall calmly.
D．Most Londoners complained about the trouble caused by Exercise Floodcall.

填空题Waldo Wilcox found hidden treasure, such as valuable jewelry high on the bluff.

填空题condemned