The old man, ______ abroad for twenty ye
题型:选择题
问题:
The old man, ______ abroad for twenty years, is on the way back to his motherland.
A.to work
B.worked
C.to have worked
D.having worked
The old man, ______ abroad for twenty years, is on the way back to his motherland.
A.to work
B.worked
C.to have worked
D.having worked