单项选择题

Until then, his family______from him for six months.

A．didn’t hear
B．hasn’ t been hearing
C．hasn’ t heard
D．hadn’ t heard
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单项选择题
Small as it is, the ant is as much a creature as______all other animals on earth.
A．are
B．do
C．is
D．have
单项选择题
______it is long after dark, he is still wearing black sunglasses.
A．If
B．Although
C．Unless
D．Even
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