Articles: a/an, the, or no article

Gap-fill exercise

C. Complete this conversation by putting in a, an or the if required. Leave the gap empty if nothing is required.

Mike: Is Maria a student at your college?
Rosie: No, she's 1 old friend of mine. We were at school together.
Mike: What does she do now?
Rosie: She's 2 computer programmer. She's not English, you know. She comes
from 3 Brazil, but she's living in 4 U.S.A. at the moment.
Mike: Has she got 5 job there?
Rosie: Yes, she's working for 6 big company there.
Mike: Do you write 7 letters to each other?
Rosie: Yes, and I had 8 long letter from her yesterday.
Mike: What did she say in 9 letter?
Rosie: She said that she was living in 10 nice apartment in 11 centre of
12 Chicago.