-What are you busy doing these days?-________ the final examinations．A.To prepare myself forB.Preparing myself forC.To make preparations forD.Myself preparing
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B解析考查非谓语动词的用法。be busy doing sth．忙于做某事；prepare oneself for sth．准备做某事。答语是省略句。完整句子应是“I'm busy preparing myself for the final examinations．”。