单项选择题

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

A．When it is breeding.
B．When it feels threatened by humans in its territory.
C．When its offspring is threatened.
D．When it is suffering from illness.
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单项选择题
A．Because there are so many very people enjoying.B．Because players can build up their body.C．Because it is very fast, with lots of action.D．Because the volleyball is interesting to watch.
A．Because there are so many very people enjoying.
B．Because players can build up their body.
C．Because it is very fast, with lots of action.
D．Because the volleyball is interesting to watch.
单项选择题
A．It is well known an over the world.B．It has become the topic of an article.C．It has made the front-page headline of the press.D．It has become the title of a best-seller.
A．It is well known an over the world.
B．It has become the topic of an article.
C．It has made the front-page headline of the press.
D．It has become the title of a best-seller.
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