高等继续教育 / 电子商务英语
正确率：100%
题型描述: 单选题
George ＿＿＿＿＿＿＿＿in this school for forty years by the time he retires.
A.will be teaching
B.will teach
C.has taught
D.will have taught
George ＿＿＿＿＿＿＿＿in this school for forty years by the time he retires.
A.will be teaching
B.will teach
C.has taught
D.will have taught
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