省力的机械结构

英语on的问题I am leaving for Shanghai on business.这里面为什么用on连接 打开电视用英语怎么说?switch用+ing吗? 找高手做JAVA 里SWITCH 编程（题是英文的）Exercise on Switch StatementFor the following questions do:1.Design a program that uses select case statement to determine the arithmetic operation on two numbers then display the output.For examp I'll have my watch ____(repair).It ____(not work). my watch doesn'twork.it needs____(repair)为什么是repairingto be repaired不可以吗 请问 p___ chips are popular take-away food空上填什么根据句意及首字母提示完成单词题,空上填什么?顺便翻译一下 3q Be quick!Or you will are late.Be-AOr-Bwill-Care-D哪一个错了?应该改成什么? be quick or you will be late改为含有if引导的条件状语从句 主将从现 Be quick,（从）or you will be late!（主） or后面是不是通常用一般将来时呢 ______ I go to Shenzhen______ ______ and usually the train ride______ me an hour.我有时坐火车去深圳,通常这要花掉我一个小时 For the train ride i was silent.i began to see the world through changed ____For the train ride i was silent.i began to see the world through changed ___.A,ways B.windows C.eyes D.hearts答案是C.但我不明白.为什么改变“eyes”而不是改 i wanttd to catch ____ early train,but couldn't get ___ ride to the station I wanted to catch _____early train ,but couldn't get ____ride to the station.A.an the B./ the C.an / D.the a 为什么 Half Remembered dreamgamesky中文什么意思不懂dreamgamesky这个是什么意思 . 英语翻译有什么特殊的意义没？而且就只有这么多这是我朋友给我的备注 luckily, he( )the heavy rain a catch bcaughtc miss d missed 新概念二到四都背过,英语口语分别会达到什么程度? he often help his mother do the housework.哪里错了 He never help his mother do the housework.(改为反意疑问句)He never help his mother do the housework,______ ______? Does Jim help his mother do housework(该陈述句） Jim( )his mother( )housework Just missed the train的歌词…要中英对照 谁有Kelly Clarkson的My Grown Up Christmas List 歌词和Just Missed The Train 歌词越快越好! He ran fast that he caught the rain.He ran ______ _____ ______ catch the train. I'm afraid you got catch/catching/caught/catches in the rain this morning哪一个,为什么 Be quick,oryou'll get _ in the rain.A.to be caught B.catching C.to catch D.caught 要详解 my watch doesn`t work 对划线部分提问 划线部分：doesn`t work Now I find what is the most important.I know what should l do.水能帮我翻译下`` dont leave her waiting outside in the rain这里wait为什么要加ing 连词成句 her rain waiting not leave outside in the do越快越好 单词不得重复 Just about enough 这首英文歌曲是外国人唱的吗?听声音很像是我们中国人唱的.不像是外国人唱的. 他英语学得很好 （英文翻译）