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补全对话。 T-Tina M-Mary M: 1 did you go on your trip? T: I 2 to the mountains. How about you? M: I visited the aquarium. What did you do there? T: I went hiking and had a picnic. M: That 3 fun. T: What did you see there? M: I 4 some sharks, seals and a big octopus. Then we watched a dolphin show. T: What else did you do? M: We watched a movie about sharks. It was interesting. T: Oh, did you take any 5 ? M: Yes, I'll show you some. T: Great! 1.______2.______3.______4.______5.______