she could not have come at a better time怎么翻译

lily could not have accepted the invitation-----?为什么用has she 不是could she You _____ not have seen her yesterday,for she was abroad.A.must B.should C.could D.would could not have done 谁知道could not have Jane ___ have come to the party,but she ___ not find the exact timea.could; could b.should; could c.might; could选A 这几个意思感觉差别不大,在这怎么分辨? The little girl could not speak,nor ___ anything we said.A.she understand B.could she understand C.understood she D.she could understand B 求分析, must not have been;could not have She could not move with her shirt ____ on a nail.A) was caught B) to be caught C) caught D) have been caught选哪个,谢谢 I want to have children,but Jean says she's not sure.That could be a _ later on.A.problem B.condition C.result D.project she could not have come at a better time怎么翻译 she__not have seen you yesterday,for she was not thereA could B might Jane ___ have come to the party,but she ___ not find the exact timea.could; could b.should; could c.might; could 选A 这几个意思感觉差别不大,在这怎么分辨?觉得B也可以呀,should不是表示本该.,而could是本能够.的么?B,C She looks very happy.She __have passed the exam A should B might C could—She looks very happy．She have passed the exam.－I guess so．It’s not easy after all.是easy不是difficult!A should B might C could D must She said her only regret was that she could not have done more than she did.这句怎么翻译.出现的she是一个人还是两个人? ——_____ she have lost her way?----- She might have.A must B may C Could D Should she could hear(),but he could not see() A nothing,anything B something,something C anything,anything Dsomething,anything She could not help___________out.A.cry B.cried C.crying D.to cry急用! The application could not start she JVM.