How to Replace That-Clauses with 'So'

Practice
You heard me give many examples of shortened that-clauses with "so" in today's program. Look at the three examples below and complete their full that-clauses.

1.(about the business award) I haven't gotten an answer yet.

But I really hope so!!
But I really hope that __________________!!

2.I am not sure if Alfredo is coming to the watch party.
He said so.
He said that ____________________.

3.Should we wait until tomorrow to go hiking?
I suppose so.
I suppose that _____________________.

4. Would you like anything else today?

I don't think so, thanks.
I don't think that ____________________, thanks.