I am assuming that you are asking about Mr. Frank. He finds the secret room when he returns at the end of the war.
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<u>The correct answer is: The seats in the theater were uncomfortable. </u> The adjective predicate is an adjective that is placed after a copulative verb (it is a verb that does not express any type of action, it only associates the subject with the predicate), for example: be, seem, become, and this adjective describes to the subject In the sentence, the adjective predicate is uncomfortable.
