A-A+
The old man ______ abroad for twenty years i
问题详情
The old man, ______ abroad for twenty years, is on the way back to his motherland.
A．to work
B．working
C．to have worked
D．having worked请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：D
解析：不定式表将来打算，现在分词的一般式表主动进行；从for twenty years(已经工作20年了)看，要用现在分词的完成式。所以选D项。
