Johnson's challenge once again proved unsuccessful as the fight was stopped in the seventh round for his second loss.

The challenge of desktop publishing has proved too great for many companies.

The challenge proved difficult for the girls due to their funds running low and many of them had to resort to haggling.

The Nets were the better team in this series; their challenge was proving it.

It was nothing so much as a challenge to prove him wrong.

This challenge proves that the year spent working on the bridge has not been wasted.

She'd have to be an idiot not to recognize the call for what it was: a direct challenge to prove her worth.

However, with great efforts, the School has step by step overcome these challenges to prove itself.

This challenge proved to be unsuccessful as Jack was knocked out in the sixth round.

Despite these efforts, the challenges have proved difficult to overcome.