单项选择题


Questions 22-25 are based on a conversation you are going to hear.
What’s David’s problem

A．He can’t find his office key.
B．He has misplaced some exams.
C．He is unable to talk.
D．He doesn’t like his classroom.
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单项选择题
The passage mainly discusses ______.
A．a new way of highway speed control
B．a new pattern for painting highways
C．a new approach to training drivers
D．a new type of optical illusion
单项选择题
What was the man doing when the woman approached him
A．Reading.
B．Sleeping.
C．Doing research.
D．Planning a trip.
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