By concentrating hard he could make out the way things were inside the building.

Finally, by concentrating hard he managed to focus the boy's face more clearly.

He concentrates hard, but does not pick up every word.

She concentrated hard, trying to focus her eyes on the incredible scene.

He forgot about trying to open his eyes and concentrated hard on understanding what the people near by were saying.

He seemed to be concentrating hard, but his movements were slow.

The cold could get to you, but I just tried to concentrate and work hard.

She concentrated hard, trying to get the simple thought into a form this mob could understand.

She concentrated hard on the Hebrew text in front of her.

Concentrate hard, and at the same time try to project the feeling that you want to help.

Shutting my eyes, I concentrated hard and tried to imagine myself somewhere else.

"You always concentrate so hard that I don't think you're listening to me."

I had to concentrate so hard to make this happen.

Wayne is a fantastic example to everyone of how to concentrate hard and be calm at the same time.

He concentrated hard and aimed again slightly left of the place the guy had fallen from.

The reader has to concentrate hard to find out what is going on.

One doesn't have to concentrate so hard to hold his shape.

The price is $6.50 with alcohol, $4.50 without, although customers may have to concentrate hard to tell the difference.

I had to concentrate very hard to stop myself from running screaming out of the flat.

He had to concentrate hard to keep his instruments from leading a life of their own.