【題目】He devoted as much time as he could _______ on the plan.

A. working B. to work C. worked D. to working

【答案】D

【解析】

試題分析：句意：他花盡可能多的時(shí)間來做計(jì)劃。devote... to ...把……專用于，其中to是介詞。所以選D。

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