关于can't have been的句子我写的I can't have eaten为什么是错的老师说非要写成I can't have been eatting

关于can't have been的句子我写的I can't have eaten为什么是错的老师说非要写成I can't have been eatting 用must have been/done或can*t have been/done 改写句子 can’t have been与couldn’t have been的区别? can't have been和must have been每一个的用法 用can't have been造句! He can't have been.He must have been.不是说单三用has吗?这里怎么用的have? 关于have/ has/ been to sp/的句子关于have/ has/ been to sp/的句子3句 我写的英语句子,请帮我看下对错he may has lunch at your home.he may be ill,so he can't go there.He may have been in the Egypt.I' m not sure if he ill.He can't have been jumping at that moment.I think that you must have been the fastet of They can't have been doing their homework请问can't have been是对刚才所发生的事的推测吗? 英语翻译A.can't have been B.mustn't have been C.shouldn't have been D.wouldn't have been 英语单选题 关于 have been| gone的oh,jodie,I didn't see you just now.can you tell me_____ A.where you have been B where were you C where you have been 选B 准的 回答下麻烦说下理由 A.where you have been B where were you C where you h They can’t have been doing their homework,能不能改成下面句子They isn't doing their homework----------------改前和改后的句子除了语气不一样外,还有别的不一样吗? She can't have been Danish. and She must have been Swedish. be,must be,can't have been,must have been吗 must have been和can't have been和现在完成时有没有联系啊 The room is still in a mess;it ___ thoroughly cleaned.A.can't have been B .mustn't havebeenC .wouldn't have been D.shouldn't havebeen请问选哪个?选和不选的原因?顺便把句子翻译成中文. 关于情态动词的一道题He_____ to Shanghai,for I saw him a moment ago.A.must have gone B.can't have gone C.mustn't have gone D.can't have been选哪个,给出理由B和D有什么区别 求三种英语句子,每种五句,新概念1的水平,例句在下例句1：where do you think you are?例句2：but you had better not do it again.第三个用can't have been和must have been,may have been造