Breaking glass vs. broken glass

[Mitokomon]

Test No. incompl/inter-22 "Cross Questions", question 4

Mike: That doesn't prove anything. Actually I heard the sound of glass ......... in the night.

(a) creaking
(b) crackling
(c) breaking
(d) broken

Test No. incompl/inter-22 "Cross Questions", answer 4

Mike: That doesn't prove anything. Actually I heard the sound of glass breaking in the night.

Correct answer: (c) breaking

Your answer was: incorrect
Mike: That doesn't prove anything. Actually I heard the sound of glass broken in the night.
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Hi,

Could you explain why breaking is suitable in htis sentence? I thought "broken" might be possible.
Thank you in advance for your reply.

[Torsten]

Hi Mitokomon,

Thanks for your interesting question. This sentence describes a process - the act of breaking glass. You can only hear what is going on, not the result. Breaking glass is a process, an action. Broken glass is the result of that action.
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