第12题: [单项选择]The new colleague ______ to have worked in several big corporations before he joined our company. A. confess B. declares C. claims D. confirms 参考答案:C 答案解析:根据选项的词语用法;confess to doing sth.承认做过某事;declare一般接名词短语或that从句,表示声明、宣布;claim后可接名词短语、that从句、不定式短语,不定式中的动