Which of the following is an example of a participle phrase?

Responses

His passion for singing
His passion for singing - no response given

Standing by the tree
Standing by the tree - no response given

Reading books

Reading books - This is an example of a participle phrase as "reading" is a present participle and "books" is its direct object.

Reading books - Yes, "Reading books" is an example of a participle phrase. A participle phrase consists of a participle (a verb form ending in -ing, -ed, -en, or -t) and any complements or modifiers. In this case, "Reading" is the present participle form of the verb "read," and "books" is the direct object of the verb.