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it went off unexpectedly.A.While cleaning the gunB.While he was cleaning the gunC.To clean his gunD.

编辑:chaxungu时间:2026-04-24 12:51:57分类:高中英语题库

________ it went off unexpectedly.
A.While cleaning the gunB.While he was cleaning the gunC.To clean his gunD.Cleaning his gun在线课程B