Friday, April 21, 2006

Qn:517

Most nations regard their airspace as extending upward as high as an aircraft can fly; no specific altitude, however, has been officially recognized as a boundary.

(A) as extending
(B) as the extent
(C) to be an extent
(D) to be an extension
(E) to extend


Official Answer: A
posted by ash at Friday, April 21, 2006

Post a Comment