tan270度是多少

wear为什么没有过去分词 have的过去式是什么 This is a bus. That is a sheep.的复数形式 我去新东方学英语,该报哪个班?我今年上高一,暑假准备去上海新东方,请问哪个班比较适合我?英语基础还可以.150分试卷 100-110的水平 have+动词过去式是什么时还有be+动词进行式又是什么时 have动词过去式 no have的过去式 Have fun Or enjoy yourself! the amount of 和a large amount of 各自的用法和区别the amount of 和a large amount of他们的意思,用法是什么,有什么区别? a large amount of 与 large amount of 的区别什么时候在amount of 前加aamount of 不是只能接不可数名词吗？ 关于现在完成进行时和现在进行时的互换sb have been doing sth for ten years 能换成sb is doing sth these ten years还是sb is doing sth for ten years 应该是前一句吧? what是第三人称单数吗 what is this 复数形式 a large amount of 可以修饰可数名词吗? 请问 a large amount of 是修饰可数还是不可数修饰可数 或不可数的还有哪些? What are you going to do?-I'm going to_________(have a picnic)怎么填? 连词成句1.a we are to the have park going in picnic 2.you what spare do in time do your 连词组句：1.eat want to what you do 2.in the park going to we have are a picnic .3.going to tomorrow its snow4.trumpet playing is the daming.5.birthday party having a are they. Are you going to have a picnic?改为陈述句These cakes are deliciolls 改为分别用whet和how引导的感叹句 know,find,catch,buy,buy,find,hear,say,mean,read,let的过去式 求find,buy的过去式 take it easy; make it easy的意思和区别?take it easy; make it easy 尽量详细哈. take it take it easy甚麽意思 Take it easy 既然是take it easy,为什么是take it easily?是不是take it easy是固定词组? 英语看图回答问题What does the turtle look like?这是图 看图回答（英语） 看图回答（英语）, 西班牙语L和N和R的发音区别形象点.我没分,不好意思. 西班牙语发音问题,p和b,r和l,d和t到底要怎么才算是声带不颤动?自己怎么感觉出来?如cuatro和cuadro,paja和baja有相关的语音视频吗? 西班牙语L到底怎么发音西语L到底怎么读 有的说读诶啦 有的说和英语中的L读法一样 现在都不敢买书了万一买个盗版的. mika的relax,take it easy是什么时候的歌?