I know that you are serious in your wish to leave home.

But then, perhaps, it was more serious in the world that you are from.

The Americans must see that we are very serious in this matter.

Peter Brown had health issues which became serious in late 1632.

And then he got serious, about injustice in the court system.

This time, she had never been more serious in her life.

"The business we are looking at is much more serious in all sorts of ways."

The situation is even more serious in the case of tobacco.

"As there can be nothing more serious in this world."

The disease is very serious in different parts of the world.