How technology will change education

This discovery has (a)   §  our understanding of how the human brain works.

The Internet is the new frontier of freedom in the  (a)  

 Another idea is that the earth will (a)   . So the North Pole will become the South Pole

I lead a very busy life, so spare time is a very precious (a)     to me

We must (a)     with the new development of modern scientific research

More important, we (a)     at our disposal to address and overcome this situation