It is two years _____ he graduated from college and he is very happy with his work in the company． ...
2023-02-09 13:00:55 156次 辽宁北票市高级中学2010-2011学年高三第二次月考 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It is two years _____ he
graduated from college and he is very happy with his work in the company．
A．before B．until B．since D．once
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