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——_________ abroad for 10 years, he went back home.
A．Working B．Having workedC．To work D．Worked
B
考查現(xiàn)在分詞的完成時做狀語，因為他是現(xiàn)在國外工作了10年，才回家的，在狀語的動作和主句的動作有明顯的先后關(guān)系，用Having worked，選B。
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