A useful idiom you can drop into your speaking test, or indeed in the written one, is Across the Board. 

Meaning:

  • applying to everyone
  • affecting all in an organisation or institution 
  • involving everyone or everything

For example:

I’m sure that in my country educational standards during my lifetime have risen across the board and not just for the wealthy. 

During the recession everybody was affected at the company my grandfather worked for. There were job cuts across the board.