Air New Zealand said pursuing interline agreements would present too many challenges.

The physical closure of schools during the lockdown has presented many challenges.

And she stressed her phenomenal success has also come with many challenges.

Without question, adolescence is tough and young people face so many challenges.

This is a promising initial step, but there are many challenges ahead.

There are so many challenges that we're trying to overcome, Hofman said.

Divisions over the treaty provided only one of many challenges for Walshe.

You could describe the game as one long fetch-quest with many challenges.

And how could it, when there were so many challenges still ahead?

There are many challenges, to be honest, but they are interesting ones.

Of the many challenges facing social enterprises, finance is possibly the biggest.

However, despite this year's more optimistic economic outlook, Paraguay faces many challenges.

And to-day the cup is still ours, after many challenges and trials.

His life, as it was later revealed, was punctuated by many challenges.

The concept, called crowd oil, is still theoretical and faces many challenges.

I need to be strong. With Cleberson gone, Sirli faces many challenges.