单项选择题

We can infer from the passage that the oldest form of communication between people is ______.

A．speech
B．touch and heating
C．sounds
D．body language
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单项选择题
If a person is late for business meeting, he may ______.
A．be fired
B．be criticized by his boss
C．be required to apologize
D．be made to pay
单项选择题
What is expected of the unemployment rate for this year
A．Less than 4%.
B．About 4%.
C．More than 4%.
D．The information is not given.
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