A-A+
By Christmas______I in this office for ten yea
问题详情
By Christmas______I in this office for ten years.
A．will work
B．will be working
C．will have been working
D．will have worked请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
解析：这是一个介词短语倒装句，可将其转换成一般陈述句后再解答，其对应的一般陈述句为：I——in this office for ten years by Christmas．根据by Christmas可知，这里用将来完成进行时。故正确答案为C。
