Final answer:
The participle or participial phrases in the sentences are identified and the words they modify are explained.
Step-by-step explanation:
The participle or participial phrases in the first sentence are riding the bus and before we do. The word players is modified by the participle phrase riding the bus.
In the second sentence, the participle phrase is packed bags and boxed lunches. The word their is modified by this participle phrase.
Learn more about Participles and participial phrases