A.: Hallo, Peter. How are you? Where were you a few days ago? I rang you up, but there was no answer.
B.: Didn't you know I was in Saint Petersburg? I only came back last night.
A.: I see... How did you like it there?
B.: The city's wonderful.
A.: Did you have enough time to go sightseeing?
B.: I'm afraid I didn't. There are so many places of interest in Saint Petersburg, you know, so many palaces, museums and monuments! I couldn't see all of them.
A.: That's a pity, isn't it?