strike的过去式和过去分词是什么啊?

　　The country was split down the middle over the strike.

　　国内支持和反对罢工的人势均力敌。

　　The strike cost them thousands of pounds in lost business.

　　罢工使他们失去了几千英镑的生意。

　　We're not very struck on that new restaurant.

　　我们不大看得上那家新餐馆。