difficult one

The issue of security has been a difficult one for some time.

Now, the second question you asked is the most difficult one.

At the same time my position was a difficult one.

The decision was a difficult one for both men, they said.

It is also clear that his run will be a difficult one.

Clearly, the last few days had been difficult ones for him.

But that's a more difficult one because we're not used to that.

The first thing they had to do, and oh this is a difficult one!

The report certainly was going to be a difficult one to write.

Likely it will be the most difficult one you ever made in all your life.

From the looks of things, the fight had not been a difficult one.

The 2005-06 season has been another difficult one for the club.

And the point about individual factors is a difficult one.

They talked for hours because the process is a long and difficult one.

I had a problem to work out, and a more than usually difficult one it was.

His position as head of the executive was a more than usually difficult one.

This is a complex question, but not a difficult one.

They were the difficult ones; everyone else's had been decided months ago.

The years between 1975 and 1980 were difficult ones for the organization.

He said that the decision not to run again this year was an especially difficult one.

"Any decision that a minister makes will be a very difficult one."

But the issue of free agency remains the most difficult one.

Of course, the move which Turkey has to make is a difficult one.

The holiday was a difficult one for the president last year.