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【答案】(1)B (2)A (3)B (4)A
【解析】
【听力材料】
(1)A: What is Mike doing?
B: He is catching butterflies.
(2)A: Is Zhang Peng picking up leaves?
B: No, he is watching insects.
(3)A: What are they doing?
B: They are doing an experiment.
(4)A: Are they having a picnic?
B: Yes, they are.