refresh someone's memory

[Verona_82]

Hello!

Did I use the expression 'refresh someone's memory' correctly?

He gave us a couple of minutes to run through the text so as to refresh our memory.

We read the information in the gramamr box and refreshed our memory of modal verbs.

She refreshed my memory of the use of determiners.

Many thanks!

 

[5jj]

He gave us a couple of minutes to run through the text so as to refresh our memory. The plural 'memories' is more natural; yes, I know it's not very logical.

We read the information in the gramamr box and refreshed our memory of modal verbs.
She refreshed my memory of the use of determiners.

The first two are fine, but I am not happy about the third. I can't think why at the moment. If inspiration strikes, I'll get back to you.