During a lesson on phrasal verbs, an English teacher presented four sentences and asked students to identify the one in which the phrasal verb is used intransitively — that is, without a direct object following the verb-particle combination: (I) "Don't give up — the situation might improve"; (II) "She handed the forms in at the reception desk"; (III) "They turned the offer down without hesitation"; (IV) "She gave away all her old books last week." The sentence containing an intransitive phrasal verb is: