Question

which sentence uses this meaning of dart?
dart verb to make a sudden, fast movement
the tip of this dart has become dull over time.
i bet the mouse will either dart into its hole or scamper up the post.

Explanation:

We need to find the sentence where "dart" is used as a verb meaning "to make a sudden, fast movement". In the first sentence, "dart" is a noun (referring to the object). In the second sentence, "dart" is a verb describing the mouse's sudden movement into its hole, matching the given definition.

Answer:

I bet the mouse will either dart into its hole or scamper up the post.