生物化学课后题答案

The experiment _____ last week.A.ought to be done B.ought to do C.ought to have been done D.ought to have done为什么?我选A不对吗?为什么用现代完成时?过去时不行吗?既然是应该过去做为什么不用过去完成时? She did some hard work last week.改否定句啊..改成：She ( )( )( )( )hard work last week.第一个答对的加分! My father and I did an experiment on ants last week.改成一般疑问句并做肯定回答. 1Were you in the country last week?(变成否定句) 2Was he absent from school last week?(变成否定句) l saw him last week(改为否定句 用英语翻译---热烈庆祝清原满族自治县20周年 简单的英语故事不要太短,不要长,一定不要长,附一个问题,最好有译文 有没有能翻译的东西了,除了谷歌金山词霸,有道词典 谷歌翻译、金山词霸、有道词典 哪个翻译比较准确? 的英文怎么翻译 对我来说你很重要,翻译成英文. 我可以告诉你、在我心里、你很重要 翻译下英文 don't just play the hand you're dealt...wear it.这句话怎么翻译 有什么语法 Can you wear hats in school?的翻译 英文翻译谢谢.我现在对中国足球的热情逐渐消退了. 用wear work look fly keep 各造一个句子带翻译 英语翻译It is a big pleasure that I have scored goals and my club can avoid relegation," he reflected."To be honest,that was not easy for a player in his debut season.But I worked hard during the acclimatisation and luckily it didn't take me too I don't know what i should wear英文同义句翻译 在横线处填上"put on"或"wear",填完请翻译一下句子.英语好的帮帮忙吧!1、The girl who___pink dress is very beautiful.2、Jim,___your coat before you go out; it's really cold outside. 3、Don't___that coat ; it's dirty.4、My mothe 谁有一个60秒的英语小故事?以...is my friend 谷歌金山词霸合作版2008,怎么不能全文翻译了 英语翻译本来用的是谷歌词霸的一个老版本,在任意位置（WORD、网页等）选用中文或英语都会自动交换翻译.后来提示升级新版本,刚打开新词霸软件翻译两下子就会提示（暂无相关的解释）. 翻译求助：理性与激情,怎么翻译阿谢谢 do an experiment怎么读 experiment的音标?还有Moral Education的音标？Social Studies的音标？ exercises experiment insects 怎么读 experiment里面的P音标是p ,实际发音的时候是读b吗?expert里面的P呢? kangaroo,insects,pick,experiment怎么读?读法要这种,例如:“two”读成“兔” 谁有关于爱情的英文小故事的, 求一则英文小故事 求帮忙写一个英文小故事谢谢!必须用上freezing,temperature,minus,degree,snow,ice,thick,skate,although这些单词即可!谢谢了!非常感谢! 所有的朋友 英文他的所有的朋友 咋写