阅读下列材料，从A、B、C、D四个选项中选出最佳答案。

    Happy Valley(欢乐谷) is a wonderful place full of fun. On December 15^th, Li Lei had a good time here with his classmates.

    They all wanted to ride Space Shot(太空梭) first. It could send people sixty meters into the air quickly. And after only thirty seconds, people could be back to the ground. It was so exciting. But there were so many people.

    Then they went to Gold Mine(金矿) Town and traveled on the Gold Mine Train. There was great excitement on the train when it started moving.

    They also took part in some English activities. Through the activities, Li Lei improved his English a lot. He could introduce Happy Valley to foreigners in English.