_广州成考网

 We won’t keep winning games____we keep playing well.

• A、because
  

• B、unless
  

• C、when
  

• D、while

52__________。

With the help of the speech software it is most possible____．

• A、to improve a famous person’s speech
  

• B、to say what you want in another’s voice
  

• C、to make a speech much more easily
  

• D、to help you to find a better job