There will be more changes, and some of them may present real difficulties.

"But I thought it would present little difficulty to such an expert."

But all would present difficulties for the Government, analysts said.

I do not think this presents major difficulties at all.

This last operation must present certain difficulties with a crew of little experience.

Quality of data in developing countries also presents special difficulties.

That would present great difficulties unless tale two men happened to be living in the same house.

But the passage of almost half a century presents difficulties.

Your reading presents certain technical difficulties at this time, but I can give you some information now.

This system can present difficulties for animals which spend much of their life underground.