二甲醚的结构式

do last weekend中文意思 以《土地》为题写一篇600字左右的作文.是600字哦！内容围绕环境保护来写。 They fly to Shanghai twice a year.换种句型表达 The TV says it will be ____(rain)tomorrow. 答案是rainy,可为什么不能为rain（此时为名词）呢?be动词后不是可以跟名词或形容词吗 开头是长的成语 长字开头的成语 “长”字开头的成语有哪些? 长字开头的成语都有那些? “长”字开头的俗语 以土地為話題的500字作文 The old and dangerous house in the neighborhood should be p________ down at once She couldn't take shorthand,_____slowed down the work of the office.A.that B.which C .it D.so 为什么选B 咋样快速记忆外语单词, 急求一个英文单词（作业）总共有6个字母,第二个字母和倒数第二个字母（也就是第五个字母）都是E（也就是e）.这个单词与地理有关.描述是：a large natural stream of water that empties into a lake,ocea My last weekend英语作文 my last weekend八句话急 The cake has gone (badly).You can't eat it.中The cake has gone (badly).You can't eat it.中间是不是填badly Don't eat the meat,It -------- （go） bad. I don't think her passport's gone,______ A.is it B.has she C.do I D.don't you答案是A,为什么 哪个英语聊天室比较好?最好是英国,美国,加拿大或者澳大利亚人多一点的（千万不要是太多印度人的）而且年龄也比较轻的. 曼陀罗花的话语是什么 对划线处提问 Jim will go to the park tomorrow ——划线处the park 句型转换Father will go to work by bus tomorrow.Father will go to work by bus tomorrow.句型转换Father will ____ _____ _____ ______ work tomorrow. 英语翻译 A chain of short story about their distance.RT "she is my baby"said the mother变间接引语 we speak english in england改为被动语态 he said,the bus has already gone改为间接引语college students invented the flying disk就画线部分提问college studentslt was invented in 1885就画线部分提问in 1885what are they used for用 直接引语变间接引语She said,“Please ture down the TV.” I am too busy now. I have no time ---- sports 填介词 He will go to school tomorrow.改否定句 Will we go to school tomorrow?为什么?或 Will you go to school tomorrow?Shall we go to school tomorrow? Mary will go to school tomorrow 是什么时态