题目
The old man,________ abroad for twenty years,is on the way back to his motherland.( )A. to workB. workingC. to have workedD. having worked
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
题目解答
答案
D. having worked