We find___impossible to get there before 8 o'clock.A her B it C this D thatHave you finished your work___?Yes,I have.I've___finished it.A yet;already B already;yet C just;already D already;yetHe's___China twice.He's visited many interesting places th

We find___impossible to get there before 8 o'clock.A her B it C this D thatHave you finished your work___?Yes,I have.I've___finished it.A yet;already B already;yet C just;already D already;yetHe's___China twice.He's visited many interesting places th
We find___impossible to get there before 8 o'clock.A her B it C this D that
Have you finished your work___?Yes,I have.I've___finished it.A yet;already B already;yet C just;already D already;yet
He's___China twice.He's visited many interesting places there.A been to B gone to C going to D going to go to
Mr Smith___to American 10 years ago and has been there.
A have gone;since then B went;from then C has gone;since then D came;ever since
Where's your father?He___to work.A has gone B went C has been D will go
How long___you___here since you___to Beijing?
A did;live;came B did;live;have come C have;lived;came D have;lived;have come
请各位把每道题出现的句型和语法和我说一下,答案要不要无所谓,只要把用法和我说下就可以了,

We find___impossible to get there before 8 o'clock.A her B it C this D thatHave you finished your work___?Yes,I have.I've___finished it.A yet;already B already;yet C just;already D already;yetHe's___China twice.He's visited many interesting places th

it作形式宾语,代替真正的宾语to get there before 8 o'clock

疑问句中用yet,肯定句中用already

has been to表示去过某地并且已经回来了has gone to表示去了还没回来

看到ago就只能用一般过去式

Where's your father说明去某地还没回来has gone to

看到since,前面主句用现在完成时,since后面用一般过去式

1. B   it当形式主语

2. A   “已经”提问的时候用yet，肯定回答用already

   
   

3. A   考察been to和gone to辨析，been to是去过，gone to是去了还没回来

4. B   考察一般过去时和完成时用法<...

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   1. B   it当形式主语

   2. A   “已经”提问的时候用yet，肯定回答用already

      
      

   3. A   考察been to和gone to辨析，been to是去过，gone to是去了还没回来

   4. B   考察一般过去时和完成时用法

   5. A   been to和gone to

      
      

   6.  考察一般过去时和完成时
      

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   1. it    宾语从句动词find,feel,consider,make,believe,think等后面有宾语补足语的时候，则需要用it做形式宾语。具体的你查一下it在宾语从句中的用法http://baike.baidu.com/view/343.htm2.A     yet用于疑问句，already 用于肯定句3.A    been to 为去过某地已经回来         gone to 为去了还没回来4.

      看到ago就只能用一般过去式

   5.A意思是他爸爸去工作了（还没回来）

   6 C考察SINCE 的用法http://wenku.baidu.com/view/1480b11cb7360b4c2e3f647d.html

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   B find it +形容词 to do。。。 it是形式主语。指代后面的get there b4 8 oclock
   A yet用在疑问句和否定句里的已经。 后面是肯定句。用already。用于现在完成时。
   A he‘s =he has have been to+地点 表示曾经去过某地的，而且现在已经回来了。表状态。。have gone to 表示去某地了。...

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   B find it +形容词 to do。。。 it是形式主语。指代后面的get there b4 8 oclock
   A yet用在疑问句和否定句里的已经。 后面是肯定句。用already。用于现在完成时。
   A he‘s =he has have been to+地点 表示曾经去过某地的，而且现在已经回来了。表状态。。have gone to 表示去某地了。至于到没到那，或者回没回来，我们不知道。表动作。
   B 后面有个10 years ago ，时间状语，那就是要用过去式
   B 问到你爹地去哪了，用一般过去式。表状态。
   C since+时间出现，那就用现在完成时，表示自从你来北京以后一直住了多久。

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