The nunther of the students who took part in the competition       500，but only a small number of them       chosen。

    A was；were    B were；was    C．were；were   D．w；was

Do you often help your father ___ the farm work during the summer vacation?

       A. for       B.on     C.in        D.with

—I am really proud of our country!

—I feel the same way. That was the first time that the Chinese people             (行走) in space. (walk)

她生了一个女孩。

—Can I help you, Madam?

    — No, thanks. I_______.

 A. have just looked around             B. just look around

 C. just looked around                 D. am just looking around

They ______ on the program for almost one week before I joined them, and now  we ______ on it as no good results have come out so far.     

A．had been working; are still working  B．had worked; were still working 

C．have worked; were still working      D．have worked; are still working

As I have a meeting at four, ten minutes _____ all that I can spare to talk with you.

A. are           B. was             C. is            D. were

—— What do you think of the concert?—— Oh, it was______success.

A. a very          B. quite a         C .so             D. really

—Will you attend the meeting this afternoon?

　　　　—But I ________ told anything about it.

　　A. wasn't　　　　　　　　　　　　B. am not

C. haven't been　　　　　　　　　 D. won’t be

一方面，我们的生活条件改善了；另一方面呢，依然有很多人生活在恶劣的条件下。