The old man, ____________ abroad for twenty years,is on the way back to his motherland[ ]A.towork B.
A.to work B.working C.to have worked D.having worked
题目简介
The old man, ____________ abroad for twenty years,is on the way back to his motherland[ ]A.towork B.
题目详情
A.to work
B.working
C.to have worked
D.having worked
答案