duplex bipartisan bipolar biennial n 1. Their splendid ___ apartment had a panoramic view of Paradise Park. n 2.Every two years we get to hear Mildred McDermott sing “Moonlight in Vermont” at the ___ town picnic. n 3. The new law was written in a thoroughly ____way, and so passed through Congress easily. n 4. Our ___ earth spins on axis that extends between the North and the South Pole.