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---What are you busy doing these days?
---____ the college entrance examination.
A．Preparing forB．To prepare for
C．To be preparing forD．Prepared for
A

試題分析：句意：--這些天你在忙什么?—準備大學入學考試。be busy doing忙于做某事；這里答語是省略句，完整的是I am busy preparing forthe college entrance examination.故選A。
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