Hello,
here's a note (an invitation) and its reply (taken from The New Cambridge English Course 1, students' book, p. 87):
(The invitation)
Hi Carlos,
Why don't we go and see 'Rock, rock, rock of ages' tomorrow evening? Let's meet at the station at 6.55. OK?
Yours, Annie
(The reply)
Dear Annie,
Sorry. I can't go this evening. Perhaps another day?
Yours, Carlos
My students had a problem with this evening saying that this evening means '*today evening', i.e. 'tonight'. I said that it means here the evening you mentioned (i.e. tomorrow evening) Is my explanation correct?
TIA
Stefan