We climbed up the hill,()we could see nothing all buildings

We climbed up the hill,()we could see nothing all buildings
while
and
for
but
选什么啊

ut,作转折
and,or,but这三个连词分别称作等立连词、选择连词、转折连词,可以用来连接任何同类的词、短语和句子.下面先以and为例：
 
1、连接并列的各种词类,如：
 
Two and two makes four.二加二得四.（数词）
Read slowly and loudly.读得既要慢些又要大点声音.（副词）
She is beautiful and cute.她又漂亮又可爱.（形容词）
He went there to and fro several times.他来来回回去了那里好几次.（小品副词）
My father and mother are both workers.我的父母都是工人.
Try and shoot the bird.开枪打那只鸟试试.（用在go,come,try,write或see与其他动词中间表示目的）
We talked and talked.我们说呀,说呀,说个没完没了.（用在两个意思相同的动词之间反复发生的行为）
We ate and drank to our full content.我们尽情地连吃带喝饱餐了一顿.（连接其他动词表示同时或紧接着进行的行为）
 
2、连接各种并列成分,如：
 
He is at home and does his homework at the desk.她在家伏案做作业.（并列谓语）
He went out of the door and into the dark.她出了门走进黑暗之中.（并列状语,介词短语）
The boy at home and in bed caught cold.呆在家躺在床上的男孩感冒了.（并列后置定语）
 
3、连接并列句.如：
 
I did not answer,and he,too,kept silent.我没有回答,(而)他也不作声.
Go at once and you will see her.马上去,那么你就会见到她了.
The cure for bad teaching is good teachers,and good teachers cost money.解决教学质量差的办法就是请好的教师,但请好的教师是需要花钱的.
All through yesterday crowds have been arriving and by midnight thousands of people packed the square.昨天陆续有大批人到来,午夜时有几千人聚集在广场上.
You could only really tell the effects of the disease in the long term,and five years wasn't long enough.真的,这种病只能在很久以后才能看出它的影响,而5年的时间还不够长.
 
同理,or 和 but 也是如此.
 
John or you are in Class Two.约翰或者你在二班.（名词）
two or three miles两三里(距离)（数词）
late last night or rather early this morning昨晚深夜,或者更确切地说,今天一早.（形容词）
He cannot read or write.（动词）
Make haste,or (else) you'll be late.快点,要不然就来不及了.（句子）
No one but she saw the prowler.除了她以外没有一个人看见那个行窃者.（代词）
It never rains but it pours.光打雷不下雨.（句子）
There is no doubt but right will prevail.毫无否定疑问,正义将取得胜利.（句子）
There never is a tax law presented but someone will oppose it.现行的税法没有一条是没人反对的.（句子）