_四川成人高考

If the speech software were widely used，____．

• A、people would no longer believe each other
  

• B、it would not be necessary to go for a speech by a famous person
  

• C、no radio or TV broadcasters would be needed
  

• D、recording of a voice alone would not be taken as a proof in the court

The volleyball mateh will be put off if it ____.

• A、will rain
  

• B、rained
  

• C、rains
  

• D、is raining

51__________？