单项选择题


A．In order that
B．Before
C．As soon as
D．Though
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单项选择题
A．because ofB．byC．in spite ofD．without
A．because of
B．by
C．in spite of
D．without
单项选择题
A．they areB．it isC．they haveD．there are
A．they are
B．it is
C．they have
D．there are
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