Possible Clues:

• Chicago's __ Center
• Chicago's ___ Center
• Get an ___ (ace)
• ___ Center (Chicago skyscraper)
• Get an __: ace
• L.A.'s __ Center
• __ Center: L.A. skyscraper
• Got an __: aced
• Chicago Loop's __ Center
• Get an ___ (pass with flying colors)