A. centerline B. outer marker C. glide slope D. TDZ
A. elevator B. rudder C. aileron D. wing
A. Promptly B. Slowly C. Shortly D. Simultaneously
A. aileron B. elevator C. rudder D. brakes
A. icing B. sunshine C. thunderstorms D. typhoon
A. describes B. to describe C. describing D. describe
A. In B. Under C. At D. On
A. visual references B. sensations C. instruments D. landmarks
A. broaden B. maintain C. protect D. restrict
A. outside references B. sensations C. instruments D. landmarks