The greedy boss made his workers work for over 18 hours a day without extre payment.可以改为：The workers __ __ __ __for over 18 hours a day by the greedy boss without extra payment.
问题描述：
The greedy boss made his workers work for over 18 hours a day without extre payment.
可以改为：The workers __ __ __ __for over 18 hours a day by the greedy boss without extra payment.
答
were maken to
答
The workers (would have to work) for over 18 hours a day by the greedy boss without extra payment.
或 （were made to work)
答
were made to work 才最贴切
would have to work是虚拟语气,但是原句是在陈述事实的,所以不适用
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