待定系数法的步骤四步

sky也有复数形式吗?Short-tailed shearwaters have travelled 10000 miles from Australia to be here.18 millions visitors darken the skies, the largest gathering of sea birds on the plant.此处sky为什么要用复数呢?难道天空还有几个 sky用复数表示什么 关于单词sky的单复数问题sky的复数形式有什么意义吗?顺便举几个例句.我得意思是天空不是只有一个吗..怎么会有复数哪? When you're listening,try to dosome thinking什么意思 do some packing do some practice还是do some practices单数还是复数? 非谓语动词中 to be done和be done 的区别应该是to be done与非谓语动词done在句中使用的区别。 非谓语动词动词to be done 和done区别他们都表示已完成,被动 有什么区别 do some sightseeing是什么意思 非谓语动词to be done和doneA new library is being built in our school and it'll be accessible to us students when(completed)next year.为什么不用to be completed?时间是next year应该用表将来啊 she's chinese划线提问 she's on a swing .（对划线部分提问）画线部分（on a swing） Mike is （Helen's）brotuer.划线部分提问划的是Helen's It is fruit ( 水果 ).It's also a kind ofIt is fruit ( 水果 ).It's also a kind of colour.What is it It's—— . You don‘t do some sports,do you?No,I ____,but now I _____climbing mountains to keep fit.A used to ；am used to B am used to ；used toC was used to；used to D use to ；used to↓No,I used to,but now I am used to climbing mountains to keep fit. 孔子是什么代的人 She has (two pencils and a pen). (对划线部分提问）,急,谢谢 He is a strong and confident boy.(对划线部分提问）____ ____ ____ boy is he?——————————划线部分是strong and confident It is now being sent to his home by train.关于这句中it is部分的时态的疑问the policeman told him, the bicycle was picked up in a small village four hundred miles away. It is now being sent to his home by train.这句是新概念二里的 his job is to be a teacher.(同意句）he___ ___a teather. put away 代词放中间是一个什么用法 阅读理解英语 我是初一的人,学校才举行了月考,班主任要求写月考总结1000字左右,我考了三科：英语最好,排名是班级第6名,年级16名 小学月考总结亲们,我们刚月考过,老师要我们写一篇总结,我不知道该肿么写.（我属于中等.） 英语试题（初中二年）He is going to buy a new house ( ) the money.Awith Bin Cfor Das he got into trouble by stealing cars. He got into trouble by stealing cars.这句话怎么翻译啊 HE HAS TWO CARS,_IS USED BY HIS MUM0 - 离问题结束还有 14 天 23 小时 HE HAS TWO CARS,_IS USED BY HIS MUMATHE LARGER ONEbthe lager of whichCthe largest one选A吧,大点的他妈妈在用难道是第二个选择?这个选择啥意思啊?I HAV 在交通中,by可以加复数名词吗?例如：by cars…… 阅读理解英语 阅读理解,英语 Is this your new book? Let me ( )a look