The problem has arisen from your ignorance of the matter.

The question excited much controversy.

You must bring home to her the importance of the matter.

Let's try another approach to the matter.

The problem was beset with difficulties.

Don't dwell too much upon the subject.

That aim is impossible to attain.

The trees have exuberant foliage.

The trees are barren or bear only small fruit.

This superstition still lingers on among them.