长相思的古诗诗意

一道关于情态动词的英语题： -Where is Mary? -She _ in her classroom.-Where is Mary? -She _ in her classroom.A. must be B. should be C. can be D. must have been答案是A.我想知道B为什么不对. welcome back to school.请问这算什么句型,有没有主语谓语宾语 Welcome back to school是什么意思快 welcome back to school 和welcome to school 哪个对 Welcome back to school.中文 Welcome back to school. Mary isn't.She （ ）letter in her badroom.(write)适当形式填空 Here's a letter..的复数形式是什么? 谁知道48个音标?谁知道48个音标,最好每个音标都有一以上的单词做范例. #儿时疑惑#为什么月亮星星总是跟着我一起走! #儿时疑惑#太阳大,还是月亮大? 为什么白天有太阳,晚上有月亮和星星? cme back to school和come back to the school的区别 come to school和is back at school得区别RT we come back to school in________? “公关实践部”英文应该要怎么翻译? 求翻译：“国际公共关系调查科”英语怎么说? 英语翻译Communication (human communication,at least) is something people do.It has no life of its own.There is no magic about it except what people in the communication relationship put into it.There is no meaning in a message except what the peo 国际公共关系开始了吗英文怎么翻译 #儿时疑惑#太阳为什么喊作“太阳公公”? #儿时疑惑#我想知道太阳公公住哪? #儿时疑惑#为啥太阳总是跟着我? 求,经历许多失败后成功的名人,如爱迪生发明电灯国内国外的都OK..记得好像那个创建麦当劳也经历了很多失败,那个老板叫什么哈...那就一步步接近成功的过程..（不一样是失败么）.那有什么 企划书的正确写法是什么? ( )-Lily wnet to see the movie alone.-If she ______ me about it ,I would have gone with her.( )-Lily wnet to see the movie alone.-If she ______ me about it ,I would have gone with her.A,should tell B.tells C.told D.had toldD,为何不是C? 怎么区分电视是并联型开关稳压电源和串联型不通电怎么区分 情态动词：She must have gone back to the vally.－She must have gone back to the vally.－No,she ___ the entrance to iy was no where to be found.A mustn't B couldn't C hadn't为什么 开关电源与普通稳压电源相比有什么优点 Tell Lily to call me as soon as she __.A,will arrive B,gets there C,has gone D,reach here she must have gone to sleep ane ___about me and the dog.为什么填forgotten 急求串联型稳压电源报告 开关稳压电源怎么设计啊?