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fromahighmountain,ahorseisassmallasanant.A.HavingviewedB.ViewedC.ViewingDView.请fromahighmountain,ahorseisassmallasanant.A.HavingviewedB.ViewedC.ViewingDView.还有为什么有些被动句用过去式,而有一些

题目详情
__from a high mountain ,a horse is as small as an ant.A.Having viewed B.Viewed C.Viewing DView.请
__from a high mountain ,a horse is as small as an ant.A.Having viewed B.Viewed C.Viewing DView.
还有为什么有些被动句用过去式,而有一些却有be动词再加过去式呢?
▼优质解答
答案和解析
a horse ,which is Viewed from a high mountain ,is as small as an ant
a horse作主语
不是过去式
是be加动词的过去分词