Without doubt, strong challenges remain for all of those involved in economic policy.

For all the work that has been done, tough challenges remain.

Now, only the challenge by the police investigators' unit remains.

Much has been done so far, but daunting challenges remain ahead of us.

However, challenges remain and they will have to be confronted.

The challenge has been and remains trying to keep talented managers who could make more on their own.

It is a fact that the problems and challenges confronting the Union today remain.

Still, the clinical trials will take years and many challenges remain.

Although clear challenges remain for the community, their economic status improved dramatically between 1989 and 1999.

But the crucial challenge will remain finding customers willing to spend.