单项选择题

Paul doesn't have to be made ______. He always works hard.

A．learn
B．to learn
C．learned
D．learning
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It is ______ work of art that everyone wants to have a look at it.
A．so an unusual
B．such an unusual
C．so unusual
D．such unusual
单项选择题
______ the houses were knocked down in the earthquake.
A．A great many
B．The number of
C．A great many of
D．A great deal of
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