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!
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