Eating too much fat can ________ heart disease and high blood pressure. 

At the meeting an important problem _______ and it attracted everyone’s attention.

He was in hospital for six months. He felt as if he was ________ from the outside world.

—Did you have a chat with Tom?—No, I was trying to ________ an opportunity to do so, but I couldn't.

 Teenagers are damaging their health because they often ______ themselves to so many electric products.