Locate the participial phrase and the word it modifies. Waiting in the cafeteria line, the girls talked about their history assignment.

Participial Phrase:

Modified:

The participial phrase is 'waiting' and the word it modifies is 'line.'

Participial phrase refers to a word consisting of a present participle or the - ing form, and the past participle or the - en form. It's followed by any modifiers, objects, and complements.