This task proved more challenging than I hoped.

However, the timing for this event proved to be too challenging for UNCTAD and the project was shelved.

Managing or preventing and, where feasible, resolving such emergencies has proved to be particularly challenging to OAU, Governments and humanitarian agencies.

Tremendously challenging.

That was challenging.

Why so challenging?

As previously reported (A 59 581 S 2004 925, paras. 23 and 24), the task of training, staffing and sustaining an effective police force has proved to be 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.

A bit more challenging, right?

So this is more challenging

Are you challenging my orders?

That proved decisive.

We've proved it.

Nobody proved otherwise.

They proved it.

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.

Establishing a frame of reference for measuring the performance of the RCF proved particularly challenging, as data was not being collected and monitored for the purpose of assessing outcomes and impact for the period under review.

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.

Russia s calculations proved correct.

Their predictions proved correct.

We just proved that.

We just proved that.

He's proved that much.

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.