急!can could的区别-why did you just stand byintead of warning john of this risk?-But what __otherwise?he never listen to me.Acould I do B could I have done为什么选B?这里的COULD是推测还是能力啊

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急!cancould的区别-whydidyoujuststandbyinteadofwarningjohnofthisrisk?-Butwhat__otherwise?heneverlistentom

急!can could的区别-why did you just stand byintead of warning john of this risk?-But what __otherwise?he never listen to me.Acould I do B could I have done为什么选B?这里的COULD是推测还是能力啊
急!can could的区别
-why did you just stand byintead of warning john of this risk?
-But what __otherwise?he never listen to me.
Acould I do B could I have done为什么选B?这里的COULD是推测还是能力啊

急!can could的区别-why did you just stand byintead of warning john of this risk?-But what __otherwise?he never listen to me.Acould I do B could I have done为什么选B?这里的COULD是推测还是能力啊
推测
could I have done 这里是固定搭配 本来能够做某事而没有做某事 是虚拟语气

好难啊,这种语法题我就直接放弃了。不过放心,一般高考也就一两道这样的题,英语四六级不考。
我的第一反应也是A啊,而且这么说绝对不会引发歧义嘛……

could 是情态动词,加完成时