28. For the sake of the unity and coherence of this paragraph, Sentence 1 should be placed:

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

Sentence1 "Then he played the same piece of music, but with a pure and sad lament that made the whole class sit quietly when he finished playing", judge the order according to the verbs in the paragraph: picked up harmonica→lifted to his lips→ played the same melody, J is correct.