Tremendously challenging.

That was challenging.

Why so challenging?

You know the uni is the most challenging, so number ten is challenging.

Challenging gender based violence

Not a challenging task.

And this is a very challenging idea. It's a very challenging idea to mainstream media.

The Secretary General, Mr. Boutros Boutros Ghali, has continued to remain on top of his very challenging and delicate task as the chief executive of the Organization.

A bit more challenging, right?

So this is more challenging

Are you challenging my orders?

A bit more challenging, right? (Laughter)

It's not very challenging any more.

And that's challenging because it's easy.

Your job needs to be challenging.

This is challenging work to do.

Something is very challenging to me.

In the course of this transformation, millions of people joined the global economy, with wide ranging consequences many of which remain challenging for poverty, prices, wages, and income distributions.

The other two cases remain active some claims of Global Relief Foundation challenging its listing are pending before a federal district court, while its other claims were dismissed in 2002.

But striking the proper balance is challenging.

That will be particularly challenging for Bernanke.

That is an assumption that needs challenging.

Emerging and challenging issues deriving from implementation

DM She's very tough it's most challenging.

Skepticism, because you must always be challenging.

I'm challenging you to find you value

And people reinventing themselves in challenging times.

It's this immensely exciting and challenging problem.

Listen, I'll teach you a challenging trick.

They are challenging forces they cannot control.

Miss Templeton, please stop challenging your witness.

I wish to commend them all for carrying out the mandate you have given us in circumstances that remain among the most challenging faced by any United Nations mission at this time.

Finally, Japan s external environment today is more challenging.

However, the situation in Cité Soleil remains challenging.

This session will undoubtedly be a challenging one.

It would be a challenging and difficult task.

In Japan, they say that sushi is challenging.

But that makes an interpreter's job very challenging.

This task proved more challenging than I hoped.

The societal one is a lot more challenging.

I'm challenging your all to go conference(library)

Transporting wave generated electricity inland would be challenging.

BC EDL is this immense, technically challenging problem.

Two serious problems make reconciliation in Afghanistan particularly challenging.

But success in Cairo might prove even more challenging.