After that he emptied his mind and simply concentrated on driving.

As black actors, we should be concentrating simply on becoming better artists.

By simply concentrating for a moment, he could gain complete knowledge about virtually anything in the universe.

Instead, he simply concentrated on the fire and its welcome warmth.

But he held his tongue, and simply concentrated on not sneezing.

Ael simply concentrated, for the moment, on not falling out of her chair.

I could not simply concentrate on the matter at hand.

It would be very dangerous indeed to concentrate simply on growth and competitiveness.

He tried to simply concentrate on basketball, but not with a particular idea of where he would be playing.

"They must serve their entire student body and not simply concentrate on creating football champions."