方程的解的概念

we had some good times together中的times为什么要用复数这句的意思是不是“我们曾在一起度过一段美好的时光”,那位什么time要加s呢 英文歌. 英语大神快过来 小孩英语不好怎么办,辅导的方法是什么 新东方英语背诵美文30篇第一篇:youth 青春从哪里找下载? 吉祥如意 用蒙古语怎么说?主要是发音,我知道扎西得勒是藏语吉祥如已的意思,咨询一下蒙古语 大家来帮帮我!英语就是分不清was/ were 各位高手帮忙,谢谢,急.1）Was your English class interesting yesterday?回答：Yes,it was.2)Were your English class interesting yesterday?回答：Yes,it was.这两句哪个是对的?3）Were was和were是怎么回事? 蒙语吉祥如意怎么写 cross-country是什么意思 Cross-country Skiing是什么意思 填空:My family has happy l___. Grand/3000m cross country这分别是什么项目?这是2个项目吧?我看cctv9里面是分着写的 peter has a happy family ------画线部分提问 将Li Ling has a happy family.改为感叹句怎样改 惹麻烦的英语怎么写 ‘惹麻烦’英文怎么说 Cross-country Skiing是什么意思 Hear a kind of love,called to let go. Some one kind beautifully is called puts 我叫胡静倩,麻烦大家帮我想一个英文名吧想要和名字有谐音之类的,顺口一点~ far away from的英文是什么 while I wondered what kind of country was waiting for me___the Channel.A across B cross为什么填across介词 不可以是动词吗 National team 国家队(能用country team吗?) 梦靓（jing）的英文名该怎么取呢? 本人叫tang shen jing 希望大家帮我取个有jing读音的女生英文名 外加上读音和意思 two fathers and two sons went to a bookstore.theybought therr books.ebery has a book.why?急需! he has cleaned the classroom 对 cleaned the classroom提问 If you finish these tasks ,you can go to a movie tonight.____ these tasks,_____ you can go to a movie Can you finish plant these trees in two hours?改错 I need two m____hours to finish mu homework. 此句中that的用法.Of course, for students wo do need more hours for study, perphas a room with 24-hour electricity supply can be set aside in every dorm building to meet that certian need.句子中that做的是什么句子成分,还有后面