Uncle sam ——（become）a worker in a factory in 1980, and 和 ——（work）there since then.

分类: 作业答案 • 2022-01-09 18:02:03

问题描述：

Uncle sam ——（become）a worker in a factory in 1980, and 和 ——（work）there since then.
用适当形式填空

答

became had been working