Ⅲ. Read the passage and correct the mistakes.
Last weekend, I spent busy but meaningful days helped my grandparents with their trip to Dalian. On Saturday morning, together with my grandparents, I searching the Internet for the train schedule, the weather in Dalian, and some hotel information. In the afternoon, I went to the train station and managed buying two tickets for my grandparents though there was a long queue. After had dinner, I packed the things into the suitcase, such as clothes, glasses, an umbrella, and a map. The next morning, I went to the station saw them off. Waved goodbye to them on the platform, I felt happy for them and wished them a safe journey.

1. "helped" 改为 "helping"：Last weekend, I spent busy but meaningful days helping my grandparents with their trip to Dalian.
2. "searching" 改为 "searched"：On Saturday morning, together with my grandparents I searched the Internet for the train schedule, the weather in Dalian, and some hotel information.
3. "buying" 改为 "to buy"：In the afternoon, I went to the train station and managed to buy two tickets for my grandparents though there was a long queue.
4. "had" 改为 "having"：After having dinner, I packed the things into the suitcase, such as clothes, glasses, an umbrella, and a map.
5. "saw" 改为 "to see"：The next morning, I went to the station to see them off.
6. "Waved" 改为 "Waving"：Waving goodbye to them on the platform, I felt happy for them and wished them a safe journey.

翻译:
Ⅲ. 阅读短文并改正错误。
上周末，我度过了忙碌但有意义的时光，我帮助祖父母准备去大连的旅行。周六上午，我和祖父母一起在网上查询了列车时刻表、大连的天气以及一些酒店信息。下午，尽管队伍排得很长，我还是去了火车站并成功为祖父母买到了两张票。吃完晚饭后，我把衣服、眼镜、雨伞和地图等物品装进了行李箱。第二天早上，我去车站为他们送行。在站台上向他们挥手告别时，我为他们感到高兴，并祝愿他们旅途平安。