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单项选择题

Who play professional football in the United States

A．Native-born American citizens.
B．Europeans.
C．South Americans.
D．Both B and C．
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单项选择题What is America's favourite game

A．Baseball.
B．Basketball.
C．Professional football.
D．Soccer.

单项选择题According to the passage, which book is the only book you'll ever need

A．The Bible.
B．A single volume.
C．New Age tome.
D．An electronic book.