2. There_________ (exist) a certain doubt among the workers as to whether he could finish the task in a short time.

用所给词的适当形式填空

1. Tangshan is the place where a________ (violence) earthquake took place more than 30 years ago.

5.  正如女发言人说的，我们是否应该采取进一步针对他们的行动取决于他们将怎么做。

As the spokeswoman said, ________________________against them depends on what they will do. (whether弓|导的主语从句）

4.  还没有公布这名男子没有早点报告这次事故的原因。

   __________________________________sooner has not been made known. (why弓|导的主语从句）

4. [2013 •辽宁卷]We are confident that the environment    by our further efforts to reduce pollution. 

A.    had been improved

B.    will be improved

C.    is improved

D.    was improved

3.  在开车10个小时后，我们来到一个被称为绿色房子的地方，通过它的玻璃墙， 我们看见很多绿色植物。

After ten hours' drive, we came to____________________ ， through the glass wall of which, we saw lots of green plants,(过去分词作定语)

3. [2014 •江苏卷]—What a mess! You are always so lazy!

―I'm not to blame, Mum. I am     you have made me.

A. how         B. what

C. that       D. who

2.  现在全国最关心的是救援队伍是否可以找到失踪的飞机。

________________ most at present is whether the rescue teams could find the missing plane, (what弓|导的主语从句）

2. [2014 •重庆卷]—Why not stay here a little longer?

―    ，but I really have to go.

A.    Never mind

B.    I'd love to

C.    Pleased to meet you

D.    I can't find any reason

根据括号内的提示完成句子

1.  最让我们失望的是，导游总是让我们离开我们认为非常有趣的东西。

__________________________  was that the guide was always asking us to leave what we thought very interesting, (what弓|导的主语从句)