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

分类: 作业答案 • 2023-01-23 21:55:25

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 have worked

答

became had been working