单项选择题

Over the last fifteen years, running has become a popular ______ for 30 million participants of all ages.

A．fantasy
B．pastime
C．symposium
D．penalty
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He believed that the greatest of his ______ was that he had never had a college education.
A．griefs
B．misfortunes
C．disasters
D．sorrows
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Bill, along with three other men, ______ to represent the union at the next meeting.
A．are
B．was
C．were
D．is
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