单项选择题


Questions 22-25 are based on the following passage.
What is the "lead" in a pencil made of.’

A．Diamond.
B．Carbon.
C．Lead.
D．Graphite.
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单项选择题
What is essential for people to stand pain according to the writer
A．Their relaxation.
B．Their interest.
C．Their nerves.
D．Their attitude.
单项选择题
What can we learn about the man from the conversation
A．He’s the boss.
B．He’s a new employee.
C．He’s a visitor.
D．He’s the woman’s friend.
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