Frequent bad weather and poor visibility made this a near impossible challenge.

"Long time back now, but one of those bright moments in human history when people rise to an almost impossible challenge."

He was glad to have Estarra next to him so they could face the impossible challenge together.

We all take on impossible challenges, knowing we'll be defeated.

When police are charged with behavior this awful, the authorities have a nearly impossible challenge.

For the great majority of Iranians, making ends meet has become an impossible challenge.

"That is an almost impossible challenge for the mining industry."

I recommend that older folk look toward impossible challenges at the end of their lives.

He has other friends to visit than young girls who make impossible challenges.

But of all the Democrats present, only one decided to take on what seemed a nearly impossible challenge.