Anthony, who has read thousands of books, gave a thorough presentation on the history of various genres.
What is the adjective clause in this sentence?
gave a thorough presentation
who has read thousands of books
the history of various genres
The adjective clause in this sentence is 'who has read thousands of books'. It is an appositive, separated from the rest of the text by commas, and has an adjectival meaning - it modifies the noun, Anthony.
