基本句子结构：
S+V+O （主语+谓语动词——及物动词+宾语）
11. Unrestrained development of tourism ______________________.
旅游业无限制的发展破坏生态平衡。

12. Cross-cultural communication can ______________________.
跨文化交流有助于消除偏见和敌意。

13. _________________ in watching TV ____________________.
沉迷于看电视扼杀创造力。

14. Investment in artistic projects, such as museums and galleries, _____________________.
投资艺术项目，如博物馆和展览馆等，能改善城市形象。

答案:
11.breaks the ecological balance
12.remove prejudice and hostility
13.Indulgence, kills creativity
14.promotes the city image