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Questions 11 to 18 are based on the conversation you have just heard.

A．In a doctor’s office.
B．At the post office.
C．In a store.
D．In a hotel.

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We learn from scientists’ experiments that monkeys are cleverer in language learning thanother animals because they have the ability to______.

单项选择题

Questions 11 to 18 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。