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

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

Rushmore, which happened to be one of our most challenging projects.

Most should be able to grow strongly, despite the challenging global environment.

Of these three imperatives, sustainability may be the most complex and challenging.

Even the idea of us as a family was challenging to most people.

They attract the strongest principals into the toughest schools, and the most talented teachers into the most challenging classroom.

We wish High Commissioner Ayala Lasso success in this most important and challenging endeavour.

The most difficult things to X ray, the most technically challenging things to X ray are the lightest things, the most delicate things.

We must not abandon our efforts to find common ground on those most challenging tasks.

Indeed, this has been a most challenging, crucial and fruitful year in United Nations history.

But, following monetary easing and fiscal expansion, it is Abenomics third arrow that will prove most important and most politically challenging.

After all, host countries have been able to contain nuclear risks in the most challenging circumstances.

What's the best part of working with your mother, and the most challenging part for you?

Tremendously challenging.

PM What's the best part of working with your mother, and the most challenging part for you?

We are meeting today in the middle of one of the most challenging periods in international relations.

That was challenging.

Why so challenging?

(c) Conduct of inspection and compliance missions, with a particular focus on the most challenging locations worldwide (40)

First, it has become increasingly difficult to find sufficient troops and other personnel for the most challenging operations.

The accomplishment of civic virtue is tied to the uses of intellect and imagination at their most challenging.

Beyond coordination, the requirement to build sustainable capacity is one of the most significant issues challenging technical cooperation activities.

Challenging gender based violence

Not a challenging task.

Reform of the security sector has therefore been one of the most important and challenging items on the institutional agenda.

The response of the international community in support of the Palestinian people at this challenging time has been most encouraging.

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?

It is one of the most challenging race tracks in the world, mainly due to its fast, hilly and twisty nature.

The deployment and use of this seismic network is considered one of the most challenging aspects of the Don Quijote mission.

And yet the creation of a new and desirable international order continues to be the most challenging task of our times.

46. Until recently, one of the most challenging tasks faced by the Philippine Government had been the management of its external debt.

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.

Accordingly, the creation of a new, desirable international system continues to top the political agenda as the most challenging task of our times.

But striking the proper balance is challenging.

That will be particularly challenging for Bernanke.

That is an assumption that needs challenging.