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(   ) 3. [2015 • 濱州]—Look at the sign!It says "No Smoking". 

-Oh,sorry. I       it.

   A. don't see   B. haven't seen

   C. wasn't seen   D. didn't see

(   ) 2. [2015 • 廣州]Miss Brown,we        cleaning our classroom. Can we go home now?

   A. finish   B. finishing

   C. are finished   D. have finished

(   ) 1. [2015 • 自貢]—What were you doing when I phoned you yesterday evening? 

— I was doing homework while my parents       dinner,grandma.

   A. cooked   B. cook

   C. were cooking

4. The mountain is so steep that we can't reach the top. (用too...to…改寫句子)

The mountain is           for us              the top.

3. Having a good rest is impossible for me. (用it改寫句子)

             impossible for me               a good rest.

2. He has worked in this company since he moved to this city. (對(duì)畫線部分提問(wèn)) 

                     he       in this company?

1.I think there is something wrong with my digital camera.(改為否定句)

I       think there is       wrong with my digital camera.

5. 我們必須學(xué)會(huì)不受不良習(xí)慣的影響。

We must learn to                      bad habits.

4. 每天睡眠八小時(shí)很重要。

It's very important to get                     every day.

3. 你應(yīng)該只是偶爾吃點(diǎn)快餐。

You should only have fast food