单项选择题

Questions 29 to 32 are based on the passage you have just heard.

A．The different health insurance plans.
B．The federal government of USA.
C．The wise investment of their money.
D．The company they work for.

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填空题

B)。

问答题

In addition to words, the way listeners respond to a speaker can also be affected by ______.

Questions 29 to 32 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。