The old man, abroad for 20 years, is on the way back to his motherland. A. to work B. wo——青夏教育精英家教网—

摘要： The old man, abroad for 20 years, is on the way back to his motherland. A. to work B. working C. to have worked D. having worked

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The old man, ________ abroad for 20 years, is on the way back to his motherland.