请逐个解答各选项 为什么选abd

请逐个解答各选项 为什么选abd 这道题为什么选A啊 其他选项为什么正确啊 请逐个帮我分析下 12题...请逐个选项解释 如图,请逐个分析,为什么选D? 为什么选c请逐个选项分析,She()last night,but Ididn't see her.A.can have arrived B.must arrive C.might have arrived D.may arrive 为什么选C请逐个选项分析,Listen!His family must be quarrelling,()?A.mustn't it B.isn't it C.aren't it D.needn't they 为什么选A请逐个选项分析,John,look at the time.()you play the piano at such a last hour?A.must B.can C.may D.need 为什么选b请逐个选项分析,Tom,you()leave all your clothes on the floor like this!A.wouldn't B.mustn't C.needn't D.may not 为什么选d请逐个选项分析,-()John come here tonight?-I am not sure,but he()stay at homeA.may;might B.can;must C.must;might D.can;might 为什么选b请逐个选项分析,At last he()finish the work ahead of time.A.could B.was able to C.could have done D.would have been able to 英语问题.为什么选d请逐个选项分析,谢谢.He()have come here yesterday,()he?A.mustn't'did B.douldn't;has C.mustn't;haven't D.would have been able to 求解答为什么选某某选项 一道物理电场题 选ABD 问D选项 为什么对?怎么找等势面? 为什么选D,请对其他选项逐个详细讲解（虽然网上有,但没怎么看懂,请说的明白一点）谢啦!急等!Miss Lee,I didn't catch what you said.Could you tell me（）again?A．what should we take B．where shall we meet C．when 为什么选A请逐个选项分析,Alice said she was really busy this week,but I think she()show up at the party if she doesn't have to work overtime on Freday.A.might B.would C.must D.shall （初三化学）在H2、H2O、H2SO4、H2O2四种物质都含有（）A、两个氢原子B、两个氢元素C、氢元素D、一个氢分子 请逐个详细解答,谢谢请写出为什么 求解释abd选项为什么错,以及c选项为什么对 第四题 请逐个分析