工厂工人正在罢工，要求提高工资。

The factory workers are ___on ___strike for higher wages.

教师工会已经号召下周举行罢工。

The teachers' union has called a ___strike next week.

合同谈判破裂后，工人们决定举行罢工。

The workers decided to ___go ___on ___strike after the contract talks broke down.