单项选择题

Nowhere in nature is aluminum found free, owing to its always ______ with other elements, most commonly with oxygen.

A．combined
B．having combined
C．combine
D．being combined
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单项选择题
He claims to be an expert in astronomy, but in actual fact he is quite ignorant on the subject. ______ he knows about it is out of date and inaccurate.
A．What little
B．So much
C．How much
D．So little
单项选择题
Although we feel dissatisfied with the election results, we have to become reconciled ______ the decision made by our fellow countrymen.
A．for
B．on
C．to
D．in
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