Americans care about personal space because ______.
A. they can be turned off by body odor
B. they are taller and bigger
C. they believe the relationship is not intimate enough
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What's the main purpose of the conference？
A. To make a plea for aiding poor countries.
B. To hold Middle East ceasefire talks.
C. To establish the International Criminal Court.
Suppose we had a meal in a restaurant and the bill was 20 dollars, how much was the appropriate tip we would give to the waiter？
A. 15 cents
B. 35 cents
C. 1 dollars
D. 3 dollars
What accounts for the increasing number of back pain sufferers in modern life is a number
A. plain ageing
B. spine defects
C. surgical failures
D. mental stress
Which of the following best describes the passage as a whole？
An outline for future research
B. An expanded definition of commonly misunderstood terms
C. An analysis of a dispute between two theories
D. A discussion of research findings in an ongoing inquiry
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