Respuesta :

I’m NOT completely sure on this but I think it would be B because it sounds better than A would.
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Answer:

Stomps

Explanation:

Since the sentence is in present tense, you would use "Stomps" because you would be the one watching it. Let alone it would sound weird if you use "Stomp."

Here are the sentence changes

"The T-Rex Stomps across the swamp."

"The T-Rex Stomp across the swamp."