Grammar

[puzzle]

--"There was a letter for you, it's on the table."
" Thank you, I will see it."

I. "It's on the table" means " It is" or "It was"? pls.
II. Can I change the sentence into "There is a letter for you"? pls.

[meez]

I. means it is
II. Yes you can. There was a letter for you means somthing like: Someone brought a letter for you. It is now on the table.

[puzzle]

Pls. I have another question:

When should I say " who was he/she?" and " I was sorry."

[Anglika]

When the event is in the past.