单项选择题


A．have written
B．to be written
C．are written
D．write
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单项选择题
A．thingsB．wayC．pagesD．language
A．things
B．way
C．pages
D．language
单项选择题
A．assignedB．designedC．proposedD．programmed
A．assigned
B．designed
C．proposed
D．programmed
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