【正文】
ppy, they took the bus back to school. At the end of the day, the science teacher was very happy because the students cleaned the bus after the trip. 1. The students had a terrible school trip. 2. They saw an octopus in the Visitors’ Center. took the subway back to school. 4. The students watched a movie about dolphins. 5. The science teacher cleaned the bus. The students had a great school trip. They saw an octopus in the Outdoor Pool. They took the bus back to school. The students watched a movie about sharks. The class monitor cleaned the bus. go, buy, visit, take, watch, clean, is, see Class 9 had a great time on the school trip. They ____ to Blue Water Aquarium for the day. First they ____ the Visitors’ Center and ______ a movie about sharks. Then they ______ a dolphin show. After that, they ____ to the Outdoor Pool and ____ a big octopus. went went visited watched watchedsaw i. go, buy, visit, take, watch, clean, is, see After lunch, they ____ to the Gift Shop and _____ lots of gifts. Finally, tired but happy, they ____ the bus back to school. At the end of the day,