自考《英语（一）》试题练习：be busy doing为习惯用法（6.30）

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2014-06-30 08:46 自考365

　　单选题

　　[2004.10]Jean didn't have time to go to the concert last night because she was busy ______ for the examination.

　　A.to prepare

　　B.to be prepared

　　C.preparing

　　D.being preparing