1) He always worked hard. Did he always work hard? Who worked hard? He always worked hard,didn`t he? How did he work?Did he always or rarely work hard?
2) The sons promised. Did the sons promise?The sons promised,didn`t they?Who promised?What did the sons do?Did the sons promise or keep silent?
3) They were very upset.Were they very upset?Who was very upset?Why were they very upset?Were they very upset or happy?