Mr. Li, who _____ his whole life to education, is retiring next month.

A．devoted B．is devoting C．has devoted D．had devoted

C

解析試題分析：句意：把一生都花在了教育事業(yè)的李先生，下個(gè)月將退休。根據(jù)句意可知他把一生都致力于教育事業(yè)是過(guò)去所發(fā)生的事情，持續(xù)到了現(xiàn)在。故使用現(xiàn)在完成時(shí)。故C正確。
考點(diǎn)：考察時(shí)態(tài)

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