单项选择题

Which one is the proof showing that dolphins are breaking the family group

A．They attack people.
B．The fight among themselves.
C．They mate with their family members.
D．They are rude and cruel.
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单项选择题
Where are the two speakers
A．At the Ocean Park.
B．On the beach.
C．At a cinema.
D．At home.
单项选择题
Why do dolphins attach each other head-to-head
A．They are making fun of each other.
B．They are doing exercise.
C．They are trying to damage the hearing system of their opponents.
D．They are gang raping.
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