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He was seen a stone at the dog.A.threwB.throwC.to throwD.be throwing

编辑:chaxungu时间:2026-04-24 12:55:49分类:高中英语题库

He was seen ________ a stone at the dog.
A.threwB.throwC.to throwD.be throwing在线课程C
谓语动词为感官动词时,其被动语态是在其后加to do