单项选择题

According to the passage, Emperor penguins fight against each other for ______.

A．a piece of ground
B．a female
C．an egg
D．a chick left alone by its parents
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单项选择题
This passage mainly tells readers something ______.
A．strange about the best parents in the world
B．wonderful about Emperor penguins
C．interesting about penguins' life
D．funny about the fight between the male penguins
单项选择题
Each pair of penguins lives together with ______.
A．their parents
B．some good neighbors
C．many other penguins
D．their chicks
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