Question

【题目】 ( work) abroad for twenty years, the old man is on the way back to his motherland.

Answer 1

【答案】Having worked
【解析】通过本文考查了学生对一些英语语法的理解和应用。如固定搭配，形容词副词的区别，名词的用法等。Having worked 考查非谓语动词。由for twenty years可知，该句需用现在完成时，the old man与work 之间是主谓关系，所以这里需用现在分词。