问题
选择题
He told me that by the end of this year they______together for twenty years．
A．would work
B．had been working
C．will have worked
D．would have been working
答案
答案：D
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He told me that by the end of this year they______together for twenty years．
A．would work
B．had been working
C．will have worked
D．would have been working
答案：D