Question

the crying baby disturbed the passengers on the plane.
gerund
participle
infinitive

Explanation:

To determine the type of "crying" in the sentence, we analyze:

• A gerund functions as a noun (e.g., "Crying is soothing" – "crying" is a subject, a noun - like role).
• A participle (specifically a present participle here) acts as an adjective, modifying a noun. In "the crying baby", "crying" describes the baby, so it is a participle (present participle) modifying "baby".
• An infinitive is in the form "to + verb" (e.g., "to cry"), which is not the case here.

Answer:

participle