occur in **

They most often occur in the age group between 40 and 70 years.

Why do they always occur in a high place near water?

The most recent one occurred at the end of the 112th Congress in 2012.

During the 1970s, major changes began to occur in the student population.

Three major ones occurred in the summer of 2011 and 2012.

But a similar position can occur much earlier in the play.

The most serious training occurred first thing in the morning.

So did the second service, which occurred in someone's office.

At the same time much development occurred in the field.

A similar process occurred in the central government of the Church as a whole.