单项选择题

No matter how______ a hill may be, it is not necessarily worthless.

A．vacant
B．barren
C．empty
D．hollow
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单项选择题
There have been several translations of the Bible, including the revised______.
A．version
B．edition
C．issue
D．diversion
单项选择题
The company are______ their new sort of tooth brush on television.
A．calculating
B．promoting
C．prompting
D．proceeding
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