请根据中文意思完成句子。
1. 森林里曾经有许多的老虎.
_______________________________________________a lot of tigers in the forest.
2. 上海是中国最美丽的城市之一.
Shanghai is ____________________________________________ in China !
3. 每年,许多人参加长城并从中获得极大乐趣.
Every year, many people ___________________________________the Great Wall.
