You are then left with the most difficult problem of all.

These four words are among the most difficult a woman can ever hear.

The second was by far the most difficult and serious.

As always, he was the one to ask the most difficult questions to answer.

The last five weeks have been the most difficult I've ever had to face.

The first summer we were in business was the most difficult.

Number Two is the most difficult position on the field to play.

The most difficult is to figure out what to photograph.

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

President Clinton's most difficult day in office is now behind him.