Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.
A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as
a result of
E. preventing its acoustic energy from dissipating by
answer: E why not E
122.
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The features of the floor of the Kasei Valles on Mars look just like those at the base of Antarctic ice streams, so it suggests that possibly it was flowing ice that carved the giant Martian channels previously attributed to cataclysmic floods.
(A) so it suggests that possibly it was flowing ice that
(B) a suggestion that flowing ice may have
(C) to suggest flowing ice as possibly having
(D) suggesting that flowing ice may have
(E) which is suggestive of flowing ice having possibly
answer: D why not B
I want to ask in what condition, we could use n + adj in the end of a sentence; and when we can use n + ing? What's their difference?
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