单项选择题

A．They have new equipment.
B．New equipment have been installed long ago.
C．New equipment should have been installed long ago.
D．There is no need for the factory to install new equipment.
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单项选择题
A．＄ 7.B．＄ 10.C．＄ 5.D．＄ 14.
A．＄ 7.
B．＄ 10.
C．＄ 5.
D．＄ 14.
单项选择题
A．To fix a button.B．To prepare breakfast.C．To wait for the school bus.D．To play basketball
A．To fix a button.
B．To prepare breakfast.
C．To wait for the school bus.
D．To play basketball
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