天然气爆炸的三个条件

I learn that learned earnest men earn much by learning. 英语的宾格.主格.物主代词.快点 I learn that learned earnest men earn much by learning. 当中learned earnest是并列形容词?为什么不用加and 英语中的人身代词有哪些（包括主格、宾格） Before he went abroad,he spend as much time as he could______English.用 learning 还是用 to learn 英语中所有的宾格,主格.名次性物主代词 英语物主代词什么情况用宾格和主格 That sounds good 中为什么用good而不用 well ,系动词后面是可以加副词作表语的呀? It's such an interesting story that one can't put it down--one has finished reading it.A.after B.when C.unless D.until It was such an interesting story____the farmer told us that day A as B that 请问是定语从句 还是强调 it,is,an,interesting,it,isn't,story连词成句快在12点之前要 I learn English.和I study English.两句有什么区别?请不要复制词典的内容!最好给出一些例子来, What从句作主语 what从句作主语,如果表示的是单数意义,则谓语动词用单数形式；如果表示的是复数What从句作主语what从句作主语,如果表示的是单数意义,则谓语动词用单数形式；如果表示的是 I feel it useful ____(learn) english 填learning对吗 I need__________( learn) English every day.填 to learn 或 learning有区别吗? 是我太伤感、翻译成英语是什么? what 引导主语从句时应注意其所指的具体内容来确定谓语的单复数 为什么 what做主语时谓语不就用单数吗具体解释 谢谢 What we need is more time ,while what they need are more doctors and medicines what 引导的主语从句作主语时,谓语的数由后面的表语或宾语确定.不应该由前面的主句单复数决定吗? I am learning English 请分析成分 I am learning English 改为以He为主语的句子 英语人称表,就主格,宾格啥的谁给列下 英语中人称代词有主格宾格之分,汉语中有吗 doesn't like 后面是不是跟动词原形?kuai who whom whose which定语从句中怎样区分不要太概念性的解答、就是因为自己看很多参考书、还是无法区分所以提问最好讲解详细并附带例句 句型转换I have been learning English for two years 句型转换 Learning English is important to us 请高手帮忙解决 谢谢 cook的过去式 cook的过去式是 cook的过去式是什么 用英语造句（初一）rain heavythis time of yearbe good forget longerbe busy 英语造句,短点儿 英文造句.新目标初一下.到第224个单词为止.每个单词造一个句子,水平在初一左右.造句不能重复.