<span>The theme is that Lemon Browns treasure may not be special to everyone but it is special to him.
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In the sentence "His hobby is writing poetry," the phrase "writing poetry" is a gerund phrase. A gerund phrase is verb+ ing which functions as a noun. In the sentence, the phrase "writing poetry" is a noun acting as a complement of the subject.
His hobby = writing poetry. This means "writing poetry" complements the subject "His hobby".
Answer:
(2) Many will begin to feel like caged animals when they are cooped up in classrooms all day.
Explanation:
a comparison between two things, typically for the purpose of explanation or clarification.