省略乘号写出下面各式.a×b×2等于多少

数字字母,字母字母之间,只要省略了不影响原来的意义就行

35x

her 是宾语,不是主语,help sb do.

came 的主语在后头, the rich scent of summer flower
夏日的花香
本句是完全倒装句

省略的是which is 是定语从句,口语中定语从句的引导词似乎都可以省略.

作引导词时,后面+that/ in which/省略.

上面那句话是对的,你可以把这句话转化成I began to acquire confidence after having been instructed to drive out of town,.其实就是句子前置,具体这个前置的说法怎么说我忘了.英语习惯性像上面那样写,比较地道.

这是后置定语的一种用法,形容词组作定语须后置,其功能相当于一个定语从句.
这里形容词词组necessary to succeed 修饰elements ,相当于一个定语从句that is necessary to succeed
不是说它省略了that ,要说省略,也只能说它省略了that is.
多举几个例子：
They are the boys easiest to teach .他们是最容易教的孩子.（easiest to teach 相当于who are easiest to teach）
The basket full of some fruits belongs to the old woman .盛满各种水果的这个篮子是这位老妇人的.（full of some fruits 相当于which is full of some fruits ）
Those brave enough to take the course must be the top students in the grade .那些敢于选修这门课程的学生一定是本年级的尖子生.（brave enough 相当于who are brave enough）

可以,please放在这里,会显得更有礼貌,如果是特别铁的关系,就可以不用说这个词,但有时候不是很熟的人之间,就需要用了,会让听的人心里更舒服

4h

(-9)-(-2)+(-7)-(+5)-(-4)
=-9+2-7-5+4
=-15

这里主要是省略了（that was）,通过分析我们知道（that was built in 1990）做的是定语修饰House,而在这样一种形式下,that was 可以省略.
按你的改法,一个句子就有两个谓语,且时态不同,这是不允许的

如果从句里含有should,had,were或其他助动词,则可将从属连词if省去,将助动词.情态动词.be或have放在句首形成部分倒装.
Eg.Were he in your position,he’d have done the same.
Had I had time,I would have done that yesterday.
Should he come tomorrow,I should give him the dictionary.
(1) 错综时间虚拟句
通常情况下,在非真实条件句中主句和从句的谓语动词所指时间是一致的,但有时也可能指不同的时间,这时要根据上下文的意思采用不同的谓语动词形式.P 116,2
Eg.If I were you,I would have taken his advice.(从句指现在,主句指过去)
If I had taken my raincoat with me this morning,I would not be wet now.(从句指过去,主句指现在).

我的理解和你有些出入.首先我觉得这里没有省略（who is).你可以把他理解为同位语.就像we students.后面的 a member of the same firm是用来补充说明前面His brother的.因为第一个句子没有谓语.
第二个句子,我建议把met 改成has had met

1 Who are those people we went to London with ?
2 Which plane is that I flew to America in ?
3 Who are those women I spoke to you about ?

ax5=5a
bxb=b²
cx1=c
ax6+b=6a+b
2xmxn=2mn

I will explain to you why I like it
to 在这里表对象,向...解释
我将（向）你解释我为什么喜欢它.
如果不要 to ,意思变了.
I will explain you why I like it
我将解释你,为什么我喜欢他.

1.
4b 5x ac x x^2
2.
7a 10a 18a 25a
3.
小华家到学校的路程=800+x
小军家到小丽家的路程=x+y
小华家到小丽家的路程=800+x+y

2*2*a=4a;x*3*3*x=9x2（2请写在右上角,代表平方）

急于去干某事,渴望干某事 do在这里是不可以省略的,对……感到好奇 是要用
be curious about……

可以填“the issue”
整句的意思就是“最近,这个问题成了公众的焦点.”

Mike found his missing car in the street outside his house ,looking newly cleaned and polished.没错.looking后面的句子作为伴随状语,也可以理解为find sth+状态 不是你想的前后主语不同,整个句子只有一个主语,mike

使役动词（have有,let 让,make 使） 和感官动词 （feel 觉得,hear 听到,notice 注意到,observe 观察,see 看见,smell 闻嗅,watch观看）.

关系代词有who,whose,whom,which,that等,主要用来引导定语从句,它一方面代表定语从句所修饰的那个名词,另一方面在从句中充当一个成分,如主语,宾语,表语,定语等.
1.关系代词which,whom,who,that在定语从句中作宾语时可以省略.
Here is the man (who/that/whom)you're been looking for.
以下情况不能省略：
（1）在介词+whom与介词+which中,whom,which不能省略.
Do you know any shops nearby in which I can buy flowers?
That is the headmaster with whom my father was talking just now.
注：当介词放在动词后时,which,whom就可以省略.
Who is the man (whom) you talked with just now?
（2）在非限制性定语从句中,作宾语的关系代词也不能省略.
Mr Green,whom you know,is the tallest in our school.
The elephant is like a spear,as anybody can see.
（3）在the same ...as,such...as,as...as,the same...that中,as,that即使作宾语,也不能省略I have bought the same bicycle as you have (bought).(指同类用as)
This is the same book that I read the day before yesterday.(that指同一个)
（4）当由and,but,or等连词连接两个或两个以上的定语从句修饰一个先行词时,第一个关系代词可省,但第二,第三个不可省略.
This is the book (which) I read yesterday and which I find very interesting.
2.当that在从句中作补语时可以省略.
He is not the man (that) he used to be.
She is all (that) a teacher should be.
3.在there be 结构中出现定语从句,或在定语从句中出现there be 时,用作主语的关系代词也可省略.
There is a man downstairs (who) wants to see you.
This is the best dictionary (that) there is in the library.
4.状语的省略
（1）当先行词是reason,而且定语从句中作原因状语时,关系代词可用why,that,也可以省略.
The reason (why/that) he failed was his laziness.
That is the reason (why) I did it.
（2）当先行词是way,且在定语从句中作方式状语时,关系代词可用in which,that,也可以省略.
The way (in which/that) these comrades look at problems is wrong.
That was the way (in which/that) she worked the problem out.
注意：当关系代词在定语从句中作主语时,不省略.
例如：I don't know the way that/ which leads to the top of the mountains.
(3)当先行词是time时,关系代词可用when,that 或省略.
The second time (that) I saw him was in 1980.
I don't know the exact time (when/that) the sports meet will take place.
注意：关系代词作宾语有时也不能省略.
另:关系代词that在从句中作宾语或表语时可省略,例如：
I've forgotten much of the Latin I once knew.
我过去懂拉丁语,现在大都忘了.
He's changed.He's not the man he was.
他变化很大,已不是过去的他了.
资料可见:
建议多看看语法书,或者多问问同学和老师.光看资料是不一定能看懂的,关于语法的说明往往晦涩难懂,所以问问别人是必要的.

x*x*9省略乘号为9x²

2002+2004+2006+2008+...+2050=2000×25+2+4+6+8+...+50=50000+13×50=50000+650=50650
It`s too easy!

你问的是关于动词不定式的省略问题.以下是我为你的详细的解答,
一般来说,如果不定式后面的内容和前面的动词相同时,to后面的内容都可以省略,而保留不定式的符号to,如下面的句子:
Do you like smoking?
No,but I used to (like smoking).
但是当to后面接的是BE动词或是have时,则不能省略了,如上面的句子改一下:
Are you a teacher?
No,but I used to be (a teacher).
Have you been to Beijing?
No,but I hope to have (been to beijing).
所以你的这个句子的正确说法是:
Do you want to go out?
-Yes,I want to.

你说的太笼统了吧,
要看是在什么情况下,
相对应的用法也是不同的.
哎,那就待我细细道来吧·····
一、形式上不留任何痕迹
什么叫形式上不留任何痕迹呢?一般来说,句子中的某些成分被省略后,形式上不保留任何痕迹,只能从意义上来理解.如：
(1) Welcome to our school.欢迎来我校.
(2) Make yourself at home.请随便.
二、留下某一个表特征的词
1.如果句子中的不定式被省略,常保留不定式中的小品词to.如：
(1) —Will you please go shopping with me this afternoon?今天下午同我一起去买东西好吗?
—I’d like to,but I have much work to do.我倒想去,但是我有很多事情要做.
(2) —Will Mr.Brown come,too?布朗先生回来吗?
—Yes.He promised to,but he doesn’t turn up yet.是的.她答应来,但现在还没有到.
但当不定式是be或动词的完成体时,be及have一般不能省略.如：
(1) —Will Bruce be a player for our team?布鲁斯将会成为我们队的队员吗?
—He wants to be,but we won’t take him in.他倒想,而我们不会接受他.
(2) —Has he finished reading the book?他把书看完了吗?
—He hopes to have,but in fact he reads too slowly.他倒希望看完了,而事实上她读得太慢了.
2.从句的谓语部分省略后,从句中的情态动词或助动词保留.如：
(1) He said he would do as much as he could to help us.他说他要尽一切努力来帮助我们.
(2) When asked to dance,she said she couldn’t.当请她跳舞时,她说她不会.
3.省略从句时,若从句为否定,则从句中的否定词not被保留.这样的主句谓语动词有：think,believe,guess,suppose,hope,be afraid,be sure 及连接副词：why,if.如：
(1) —Do you think he will come to see us?你认为他回来看我们吗?
—I think not.我认为不会.
(2) —Is it going to rain?天会下雨吗?
—I’m afraid not.
(3) —Can you go to the concert with us this evening?今天晚上能跟我们一起去听音乐演奏会吗?
—Why not.为什么不呢?
三、用一个单词来代替被省略的成分
1.当从句或分句中的谓语动词省略时,有时须加一个助动词do合适的形式来代替.如
(1) Anyone can’t break the rules.If you do,you will sure be punished.任何人也不能违反纪律,如果你违反了,你将肯定要受到惩罚.
(2) He was told not to go there alone at night,but he did.人们告诉他夜晚不要单独一人去那儿,然而它却去了.
(3) —Do you like swimming?你喜欢游泳吗?
—Yes,I do.是的,我喜欢.
2.当整个从句被省略时,可用so来代替.这样的主句谓语动词有：think,believe,guess,suppose,hope,be及疑问副词why,how,if等.如：
(1) —Do you think the thief will be put into prison?你认为那个贼会被打入监牢吗?
—Yes.I think so.是的,我认为会.
(2) —Do you believe that he will come back from abroad?你认为他会从国外回来吗?
—Yes.I believe so.是的,我认为他会回来.
(3) —It is said that Mary got her arm broken.据说玛丽把手臂弄断了.
—How so.怎么会这样呢.
(4) —He must be in the classroom now.他现在肯定在教室里.
—If so,let’s go to the classroom to see him.如果她在教室里,我们就去那儿看他吧.
3.当从句为否定,而整个从句被省略时,可写为don’t…so,也可只保留从句中的not.这样的主句动词有：think,believe,suppose等.如：
(1) —Do you think he will change his idea?你认为他会改变主意吗?
—No.I don’t think so.不,我认为他不会.
(2) —Do you think English is difficult?你认为英语难学吗?
—No.I don’t think so.不,我认为不难学.
四、从句中的引导词省略后,主谓倒装
在虚拟条件句中含有were,should,had 时,可将 if 省略,同时将 were,should,had 提到句首.如：
(1) Were I there,I would stop him doing that.要是我在那儿,我就会阻止他那样做.
(2) Had he learnt English,he would be studying abroad.要是他以前学过英语,他会正在国外学习.
(3) Should he like swimming,I couldn’t stop him.要是他喜欢游泳,我可阻止他不了.
以上这些就是省略句主要表现形式（挥汗中···）
细分的话还包括：疑问词why引导的省略句,连系动词的省略,主语+连系动词”的省略,表语的省略,助动词的省略,谓语的省略 等等.
总结太多怕你晕了,

a lot

不能,因为spoke后有to,介词后的引导词不能省略.The man to whom you spoke just now is our English teacher.

后面的句子对的.before这里用作时间状语,后面加时间
如果是第一句就成了在……面前.
条件是语境一致.

“如果你Golfing玩得恰当,它会对你有好处.”
我帮你翻译了一下,你告诉我,这个是条件从句还是时间从句?
时间就是when,条件是If,

1楼错误.
6-(+4)-(-5)+(-3)写成省略加号形式（6-4+5-3）

不是的,这是看先行词在后面定语从句定语从句中作的成分,如果做宾语,那么关系代词就可以省略.比如说你第一句中wallet是先行词,它在后面作宾语,还原是he has lost the （wallet）,因此能省略.第二句同样道理,也能省略

可以.听者会明白
Let's go get a bite 的意思就是 “咱们吃点东西吧”.

2xy
3x²

suggest 后跟that 引导的宾语从句,在宾语从句中 that 可以省略.

7^2

have 在这里是现在完成时的标志词,所以不能省略

当两个句子的主语完全一致时,则可省略.
其实这边句应该是,when it is compared with the ******
it is 被省略了.
用compared也对,但没有原句结构严谨.此句也可用 if compared with

省略了it was.不是it is.
因为but是转折连词,连接并列句,而且两个并列句主语和系动词都一样,所以省略了后面的it was.

可以.

more

do you consider在这里是个插入语,在语法上可以忽略,后面的句子不是跟在consider后面的从句

XX Bank shares has closed 0.4 per cent higher at$76.20 but lagged the other major banks which all added at least 0.8 per cent.
XX银行股票上涨0.4%收于$76.20,但是低于其他主要银行（股票）0.8%涨幅.
but 起转折作用,连接closed和lagged两个动词,主语都是XX Bank
Surge是不及物动词,后面需加介词,再加名词
好问好纳,再问不难】
PS：拜托各位,获得帮助后处理下提问 OK?

是在the person后省略了is.这是形容词的比较级中的一个比较特殊的句型：The + 比较急+主语+谓语,the+ 比较级+主语+谓语.意思是：“越、、、就越、、、.如：
The busier he is ,the happier he will be.他越忙越高兴.
The more trees we plant,the better our world will become.

(a+b)x4=?
=4a+4

当两个句子的主语完全一致时,则可省略.
其实这边句应该是,when it is compared with the ******
it is 被省略了.
用compared也对,但没有原句结构严谨.此句也可用 if compared with