数学作业设计的有效性

how long do you this book?For three days 应该填什么 i need space that only i can stay in alone.(定语从句中stay in后面没东西直接跟alone可以吗) =We spent ten days( )the book =lt took me ten days( ) ( )the book I just need an environment that (it) can improve me .这是个定语从句吗?it 可以省略吗? "淡定从容 荣辱不惊"这句话的含意是什么? 如何分辨单词有几个音节?不要复至 什么是音节?如何分辨单词有几个音节?音节如何分辨,比如brightly! 谁能告诉我怎样分辨一个单词有几个音节呢?我现在分辨单词音节不是很清楚.举多点例子.单音节的,还有2音节.3音节,4音节,5音节的.都是怎样分出来的?能不能举一些例子。或者是软件什么的啊 we often walk home.的同义句 美国贸易赤字有那么大吗? 英语翻译我想知道下面这句话写的是什么“我QI DAI下 TREM DE coming!JD不一样 至少 DO NOT LIKE NOW@ @4%768我QI DAI下 TREM DE coming!JD不一样 至少 DO NOT LIKE NOW@ @4%768 ”别翻译成英文咯 英语翻译艾薇儿·拉维尼（英文：Avril Ramona Lavigne Whibley,1984年9月27日－）,加拿大流行摇滚歌手、歌曲创作者及演员.并以歌曲〈滑板男孩〉（Skater Boy）出名.她的两张专辑,《展翅高飞》与《酷 Mr Read is fine 对fine提问? mr read is （fine）．（就画括号部分提问） 新东方什么书背单词好 riddle(英语猜谜）What has roots as nobody sees,It is tallerthan trees,Up,up it goes.And it never grows?It's_____________. 1) Let’s play a guessing game .让我们玩猜谜游戏吧.2.Can you guess?你能猜一猜吗?1.以上两个例句中guess与guessing的词性一样吗?能修饰名词的是? Did you took out this book and gave it to me 哪里出错了 It is always much better to tell a story than read out of a book,and,if a parent can produce what,i接着上面的,in the actual situation of time and the child,is an improvement on the printed text,so much the better.这怎么翻译啊 He ___(take)out a book and began to read. The Guess Who 介绍谁能介绍一下这乐队的介绍 guess the character怎么玩 课文快记的办法是什么 赤字削减计划什么意思? 含有“i”的开音节和闭音节的单词 I want to use the wine to drunk myself,life is so boring翻译出来什么意思 我原来遇到的全是in your company这样的介词短语变成where you work今天我也看懂了,不过老大in your company能用in yours代替不?我觉得可以你认为? 完成句子,每词一空我哥哥上午8：00上班.My brother ________ _______ _______ at 8:00 am. 大家所说的GMAT新东方黄皮是什么书?哪里买呢? 考GMAT上新东方的作用大吗? Mr.wang is far too wise a man _____that.A:to see B:not seeing C:being seen D:not to see选哪个..并说下原因. 1.I can’t go swimming with you this afternoon.I ________ (babysit) my little sister at home.2.1.I can’t go swimming with you this afternoon.I ________ (babysit) my little sister at home.2.Hangzhou is a beautiful city in China.A lot of people go _