Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Jim, _______ old friend of mine, used to work in _______ downtown Los Angeles. He had a good job in one of _______ biggest law firms in the city.
A.an/the/ Ø
B.a/the/ Ø
C.the/ Ø/a
D.an/ Ø/the