How to use "topic" in a sentence

And when she hears the topic that they are talking about, she suddenly feels cold.

Maybe there was talk in the village streets, a new topic in the pubs - and here and there a messenger, or even an eye-witness of the later events, caused some excitement

If we study the history of women's fight for equality with men, education has always been an important topic

It may be the most important topic, because women can only be equal to men if they have an equal education.

The education of girls is still a very important topic around the world.