凝灰岩属于什么岩

1.she spent as much as she could _______(practise) speaking English?(1)she spent as much as she could _______(practise) speaking English?(2)she spent as much time as she could _______(practise) speaking English?为什么第一个填to practise.第二 she spent as much as she could _______(practise) speaking English?这个句子应该怎么填?我认为是practing,可是答案上给了一个to practise,有没有可能填这样一个不定式.我感觉是答案错了?你们认为呢? practise as much as you can为什么用much?practise as____(much)as you can.The______(much),the_____(good).并说明为什么 请问done \have been done \being done 用法有什么区别 【have been being 】or【have been being 】I have _____(be) a teacher in a high school in the rural area since I was twenty years old.填have been being还是 have been being?有have been being这种用法吗?如果没有,那现在完成进行时 为什么没有have been being a teacher的用法?现在完成时和现在完成进行时的区别,在我理解无非是一个动作是否会持续下去而已像是,I've been painting the wall for 3 days 隐含的意思就是还没有完成,还要 阿联酋迪拜棕榈岛真的存在么?做成棕榈的样子哦,实用么? am,is,are,be,been,was,were的区别本人初学英语,实在搞不清这几者的用法product,produce,production这三者也把我弄糊涂了,后缀为tion的就是动词吗?请用例句说明各用法，如在什么时候能用什么，不该用 be.am.is.are.were.was.been.being.分别是什么时候用的 am\are\is was\were been 分别是什么时态? We should make full use of time to improve our spoken English.把这句话变为被动,有两种形式.其中一种形式是Time should be made full use of to improve our spoken English.另一种是以Full use 作主语,不清楚它的被动是怎么 we should try to improve our english(同义句) we should try to__our english __ What can we do to improve our spoken English?这句话中为什么要 用spoken?如题 完形填空 How to practice spoken English ? How can we improve our spoken English ? The完形填空 How to practice spoken English ? How can we improve our spoken English ? The first and the most important thing is to believe（1） . You should a What is the difference between a and the NBA篮球架与地面有多高 篮球架高度 一般桑出多高?篮球架的高度 一般是多高,有什么标准吗? have being done 和have been doing 的区别是什么?分别举个例子．数字产品对我们的生活产生了很大影响怎么说? being done having been done的区别什么情况下用什么 have been和are being的区别是什么?have been built和are being built还有were building的区别是什么? what is the difference between inquiry and enquiry 公司想取个英文名,要求：1、表达科技环保,智慧生活；2、要有一定的寓意,最好能结合英国的历史典故；PS:公司是做食物垃圾处理器的,就是专门处理食物垃圾的小家电. 如何自己做篮球架 篮球架的制做 being 和 to be 该怎样区别使用 初中英语2人对话形式的作文 主题Being volunteers词语不用太多60个词左右为好 帮帮忙谢谢啊! 初中英语句子结构及作用例如句子含有哪些成分,什么是表语,定语,一类的,定语等又在句子中可以起什么作用 It is not easy being your age这句话中,为什么是being what's the difference between 'is more use' and 'is of more use'?On semantics what‘s the difference and similarity between fiction and nonfiction?(the more the better) 奔跑的小狮子 阅读第一段写她八岁以前的生活,有什么作用 奔跑的小狮子中 文章的思路是什么