正切函数的单调性在哪本书

I want to learn （better） it这句话语法上有没有错误,如果有错,better该换成什么 将句子 he's currently working on TV advertisements .改为一般疑问句? He told us （that） they would help us through the whole work.这句中he told us .us不是已经是宾语了吗 为什么从句还要作动词told的宾语了? to do it is different_what to do?A.from B.between C.to D.with they told us that .这是可省THAT的宾语从句么?宾语从句的先行词也不一定是动词?这个先行词不是动词也是宾语从句? He told us that,if we could all come to help out,the whole situation would be getting better.宾语从句的引导词是that 因为if引导的田间状语从句位宾语从句的句首 所以that 不能省略 可是 为什么that 和if 中间要有 英语四级怎么重要? Can you see a man and his horse _C__ are crossing the bridge?A.who B.which C.that D.all请高手为讲下这是个什么从句?我将感激不尽! Can you see a bridge( ）the river?A.on B.over C.adove What's the difference between "try to do sth."and "try doing sth." 810610you also need to take a good set of notes.想知道：1 take怎么翻译 2 a good set of 怎么翻译 约翰昨天搭便车上班的 翻译 john ( ) ( ) ( )to work yesterday where can i find a good school to train my oral englishfor my schedule,i can not choose an ordinary school to take courses from monday to friday,so seek to yor help Where can I find experienced mandarin tutor or Mandarin Shool in Shanghai? Where I can find good China travel agentWe are planning to travel in China for 10 days with my family of 5 people.There are too many websites on the internet.I just don't know who to trust.Just wonder anyone knows any good China Travel Agent? where can find the good xiaoshuo He is working on the compurter.(改为一般疑问句) He’s currently working on TV advertisemen.改为疑问句是什么谢谢了, what do you like doing want to watch children programme? 雾都,世界火炉,旱城,花都,中国火炉,雪城是哪里 被称为雾都,花都的是哪两个城市?快~~~! 苏州园林叶圣陶说明顺序用图表表示 我想问下,what are you doing?和what do you want?中的are和do怎么用呢?什么时候该用哪个?再问下,特殊疑问句：疑问词+助动词/be/情态动词+主语+...什么时候该用什么词呢? I am for what she has give me.翻译? 翻译:当我上小学的时候就自己骑车上学 I____to school___ ___ ___ ___ ____when I_____ ______ 英语翻译becanse there are too many cars on the roads. this is the game _____ ______ ____[我最喜欢的] 改为定语从句 We saw him play football on the playground.这句话有错误吗? fifteen,your,do,you,around,homework,at,do,seven（连词成句） 12个星座的英文分别是什么? fifteen you do your aeound homework at do seven 连词成句 12个星座的英文怎么表示?