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题目内容
（华北水利水电大学英语）
Accordingtooneresident,theyareshortofsleepbecause____________.（ ）
·theyaretootiredtofallasleep
·theyareforbiddentosleepatwork
·theyaretooworriedaboutoversleeping
·theyaretooworriedaboutoversleeping
·theyaretootiredtofallasleep
·theyareforbiddentosleepatwork
·theyaretooworriedaboutoversleeping
·theyaretooworriedaboutoversleeping
参考答案
