单项选择题

A．To give the monkey a surprise.
B．To see how the monkey ate from a box.
C．To see how soon the monkey could find it.
D．To find out how the monkey would open the box.
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单项选择题
A．The churches.B．The program designers.C．The local authorities.D．The state government.
A．The churches.
B．The program designers.
C．The local authorities.
D．The state government.
单项选择题
A．Because they did not eat other animals.B．Because they were useful for protection.C．Because they were good hunters.D．Because they always obeyed their masters.
A．Because they did not eat other animals.
B．Because they were useful for protection.
C．Because they were good hunters.
D．Because they always obeyed their masters.
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