Such an occasion occurred half-way through my holiday in Russia.

This created quite a stir, for if such occasions occurred frequently the service would be thrown into disorder.

When multiple special occasions occur at the same time, there is a standard order of precedence.

Numerous occasions occurred when a Blue vs. Green clash would break out during a race.

Such occasions are rare, but have occurred in 1951, 1986 and 2005.

Many occasions occur when an adult male is commonly referred to as a boy.

One such occasion occurred just days before rehearsals were to begin in November.

One interesting occasion illustrating the westward push occurred on April 30, 1843.

Another occasion occurs where the prince sees a dead man surrounded by grieving relatives.

Whenever an occasion for this occurs, the author seems deliberately to avoid exploiting it.