(   ) 3. The teacher told us        attention       the lab clean.

A.  to pay;to keep

B.  to pay;to keeping

C.  paying;to keeping

D.  to paying;to keeping

(   ) 2. - What else should we pay attention to        building the bridge?

—The change of the weather,! think.
A. finish    B. finished

C. to finish    D. finishing

(   ) 1. When you visit a museum you should       the instructions and don't be against them. 

A. compare with    B. look forward to C. pay attention to D. try out

5. I really don't know what I can do to help her out. (改为简单句）

I really don't know            to help her out.

4. 我们计划去北京，但还没决定何时去。（汉译英）

We are planning to go to Beijing,but we haven't decided ____________  _____________  

(   ) 3. -Sam,can you tell me      ？

―Try Music World on Huangyuan Street.

A.  why to buy a CD

B.  where to get a CD

C.  how to choose a CD

D.  when to record a CD

(   ) 2. ―There are so many beautiful T-shirts. I really don't know      

―Let's ask the assistant for help.

A.  what I choose it

B.  which one to choose

C.  how to choose

D.  where I choose

(   ) 1.—-Excuse me. Could you tell me        get to the nearest post office?

―Sorry,I am new here.
A. how can I    B. how I could
C. how to    D. what I can

5. You can't lose your       with her. Instead,you should be      with her.

 用patient的适当形式完成下面的句子。

4. Our English teacher is always      to do everything for us.