单项选择题

I didn' t understand at first why he couldn' t pass the test, no matter（）hard he had tried.

A．when
B．where
C．what
D．how

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单项选择题
（）, Gloria started looking for work.

A．All the money being spent
B．All the money having been spent
C．All the money spend
D．Spending all the money
单项选择题
So little（）about chemistry that the lecture was completely beyond me.

A．did I know
B．I know
C．do I know
D．I knew
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