单项选择题

To know what is good and（）are two different things.

A．doing what is fight
B．to do what is fight
C．did what was fight
D．to do what was fight

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单项选择题
You might as well（）your money as spend it in gambling.

A．to throw
B．throwing
C．throw
D．to be thrown
单项选择题
At the beginning he refused to take any responsibility but he had to end up by（）

A．to apologize
B．apologizing
C．apologized
D．apologize
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