His parents had last heard from him on October 15th.

They were, I still think, among the most frightening words a parent can hear.

Every parent has heard that annoying question more than a few times.

It seems that my parents have already heard the news.

Many parents heard the news on television and rushed to the school, terrified of what they might find.

If there is a problem with hearing and vision, the parents hear about it from the schools.

If you did that, my parents would hear about it within the hour.

When his parents heard the news, they threatened to throw him out of the house.

These meetings create a network where parents can hear other people's solutions to problems and get support.

The parents have not heard from their two sons again, and the military says it has no knowledge or record of them.