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11. My office is ... away than mine.
A. father B. more far C. farther D. fater
12. Lana is ... than David.
A. handsome B. the more handsome
C. more handsome D. the most handsome
13. She did the test ... I did.
A. as bad as B. badder than C. more badly than D. worse than
14. A boat is ... than a plane.
A. slower B. slowest C. more slow D. more slower
15. Her new house is ... than the old one.
A. more comfortable B.comfortably C. more comfortabler D. comfortable