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.had a good / great time
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(答案→)had a good / great time
解析：
【小题1】本句的含义为九班的学生在学校的旅行中玩得很开心，故本句空格处填玩得开心的短语had a good / great time。
【小题2】本句的含义为他们去了礼品店然后买了一些礼品，故本句空格处填买了一些礼品的短语bought some gifts / souvenirs。
【小题3】本句的含义为老师非常开心，因为班长旅行后打扫了公共汽车，故本句空格处填开心的结构was happy。