根据语篇情景，用恰当的短语或句子填空，使之意思完整。

Class Nine 1.________________________ on the school trip. They went to Blue Water Aquarium for the day. First they visited the Visitors’ Center and watched a movie about sharks. Then they watched a dolphin show. After that, they went to the Outdoor Pool and saw a big octopus. After lunch, they went to the Gift Shop and 2.____________________________. Finally, tired but happy, they took the bus back to school. At the end of the day, the science teacher 3. __________________ because the class monitor cleaned the bus after the trip.

油压千斤顶常用来顶升较重的重物，它的起升高度为（）cm，大油压千斤顶其起重能力可达（）T以上。