单项选择题

A．To study animal behavior in the wild.
B．To increase the public’s understanding of endangered species.
C．To prepare endangered species for life in the wild.
D．To breed animals to sell to zoos.
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单项选择题
A．Rent the $600 apartment temporarily.B．Share an apartment with someone.C．Wait until there is a cheaper apartment available.D．Check for an appropriate apartment at another building.
A．Rent the $600 apartment temporarily.
B．Share an apartment with someone.
C．Wait until there is a cheaper apartment available.
D．Check for an appropriate apartment at another building.
单项选择题
A．His friend gave him the wrong key.B．He didn’t know where the back door was.C．He couldn’t find the key to his mailbox.D．It was too dark to put the key in the lock.
A．His friend gave him the wrong key.
B．He didn’t know where the back door was.
C．He couldn’t find the key to his mailbox.
D．It was too dark to put the key in the lock.
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