The owner and a customer can back up my story.

I arranged with the local authorities to back up your story if necessary.

Oh yes, he'd have evidence to back up his story.

All she needs is someone at that number to back up her story.

The dance director and all the girls in the chorus backed up the manager's story.

Now I need you to back up my story and put me in the clear.

I haven't a shred of proof to back up my story.

When we reach Middle California, you'll back up my story.

That car would back up my story all the way!

The police ignored him, and I didn't back up his story.