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he---tohelphisclassmatewhowasillinthebed他自愿帮助生病的同学volunteer加s还是ed老师说s郁闷--

题目详情
he ---to help his classmate who was ill in the bed他自愿帮助生病的同学 volunteer加s还是ed
老师说s 郁闷- -
▼优质解答
答案和解析
volunteered,因为后面说的是was ill.