1. ________ LSC Trading Inc., we value teamwork and roster a cooperative working environment. (A) On (B) At (C) Of (D) To 2. Parts of our building's new heating system are located directly _____ the floors. (A) there (B) open (C) under (D) away 3. Anticipating increased demand ______ the holiday season, SLC Photo is accelerating production of its most popular digital cameras. (A) while (B) stil..