A sentence for interject?

The valedictorian was asked to interject some old memories and humor into their speech.

An interjection is basically a loud interruption.Here are a few examples:"Go!" "Stop!" "Run!" "Wait!" "Halt!"Here is an example sentance:Just then, the spokesperson yelled, "Go!"

The car started to interject into traffic.

I would like to interject for a second, before you finish your thought. I'm sorry for interrupting but I could not allow you to go on with your illogical train of thought based on irresponsible...

The talk show host likes to interject his own ideas as he reads a new article to the audience.