The morning was perfectly still, an unusual occurrence there along the rim.

This was done, but it shed no light on the unusual occurrence.

He was standing near them, doing nothing, an unusual occurrence for him.

Surely an unusual occurrence in Ireland and certainly in late spring?

There was one other unusual occurrence before we left the St. Elie sector.

Awareness of this unusual occurrence will lead to the correct diagnosis.

It may be March, but it's clear that rain is an unusual occurrence.

The police are entirely at fault-anunusual occurrence in affairs of this nature.

But that was no unusual occurrence in the extra French set.

Gunmen chase protesters into the store, and it's clearly not an unusual occurrence.

He had shaved for the second time that day, a most unusual occurrence.

We have been to church to-night, the most unusual occurrence with us nowadays.

This was such an unusual occurrence that I was struck speechless with astonishment.

This was not an unusual occurrence, yet this morning she noted it particularly.

He had been abroad before-quitean unusual occurrence at that time.

Although this is against the law it is apparently not a very unusual occurrence.