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试题详情及答案解析
They were made ________  ten hours a day.
A.workingB.to workC.workD.worked
答案:B
试题分析:句意:他们被强迫每天工作十个小时。be made to do something是固定短语,被强迫做某事。据句意,故选B。
考点:考查非谓语动词。