虚拟语气虚拟语气虚拟语气虚拟语气•shouldhavedone/oughttohavedone•shouldn’thavedone/oughtn’ttohavedone•besupposedtohavedone•couldhavedone/couldn’thavedone•mighthavedone•needn’thavedone•wouldhavedone/wouldn’thavedone情态动词+havedone试比较以下两个句...

时间:2024-11-15 12:06栏目:幼儿/小学教育