青蛙除了用肺以外还用什么器官呼吸

I __get up early yesterday morning .A have to ,B had to ,C shall have to Dshould have to , They had hardly brgun to swim towards the shore________they noticed the boat.They had hardly brgun to swim towards the shore________they noticed the boat.(a) than(b) when(c) as(d) sowhen和as意思都一样啊,有什么区别?It had slowed down consi 商道上常说的Chanel那句名言是什么啊?中英文都要. But Chichester was determined to carry out his plan.这句话的谓语是哪个?为什么会有was 没有was为什么不对?帮我分析一下结构. 商道上常说的Chanel那句名言是什么啊?中英文都要. 说3-5句英文（自由说的）说3-5句英文（自由说的,想说什么就说什么）要简单点的,英文以及中文. a hear appeared from behind the tree.烦请帮忙划分成分,及中文意思? they are determined to carry out the plan,_______ difficulties there are.A.however B.no matter that C.no matter what D.whateverC项为何不可以选择? 单数时UFO前是加a还是an? Sex ,Nationality,Language分别是什么意思?我最后的一题英语拉`帮忙啊` busy ;nationality ;sex 是啥意思? 汉译英:学生们可以想参加几个俱乐部就参加几个 Student may join_________汉译英:学生们可以想参加几个俱乐部就参加几个Student may join_________ 这项计划是在帮助孩子们认识到劳动价值.This project is _good for a student _join the Reading Club.怎么做 two added to three equals five中,为什么用added而不用adds? Added 1 to 2 is 3.为什么是 ADDED?而不是add? I'M Doing Fine Now 歌词 英语翻译All life comes back to the question of our speech,the medium through which we communicate with each other; for all life comes back to the question of our relations with one another.------ Henry James If we remain inveterate smokers,it is only because we have so often experienced the frustration that results from failure.想问一下这是什么从句,主句和从句都是一般现在时.if引导的条件状语从句，主句是一般将来时， we only can 还是we can only The witness said he (water) the flowers when the accident (happen)后面一空是填happened 还是填 had happened 与前面的was watering 矛盾吗 we were only 什么for about a week 英语:1.i m doing fine here.请问这句中的doing在此是什么意思,去掉不行吗?2.we finally arreved at the park.all of us couldn't wait to get off the bus .soon the whole world was there in front of us!请问finally可以放在arreved后 Can a group of people effectively without someone being in change 这句话如何理解 name the functional group of the homologous series of alkanols 在搏击俱乐部中Brad Pitt 曾说过''你已被物质所奴役''.这句话的英文原文是什么? 法国名字“yannick balisson ”怎么发音?请用音标注明, I'm a great believer in luck,and I find the harder I work,the more I have of it.这句话有语法错误码?英语大神看看 我国古代的医圣是谁啊? I am a great believer in The study adds to the evidence ____ luck is not only influenced by the chance,but is also affected by a person’s attitude.A.that B.whose C.what D.which怎么翻译呢? 我国历史上谁被尊称为医圣?他不仅有高超的医技,更有高尚的医德,在我国历史上,这个被尊称为医圣的人是谁? Tom hurried to the study,变为同义句Tom ___ to the study _____ ______ ______.Tom hurried to the study,变为同义句Tom ___ to the study ___ ___ ___.