完成句子 根据中文提示，完成句子。
我以前从来没见过这么美丽的山。
I have never seen such  a  __________________  before.
要赶上现代社会的快速发展，人们不得不努力工作。
People have to work hard to _______________________the quick development of modern society.
据报道新总统曾经是一个很害怕在公共声合演讲的人。
_______________________that the new president used to be afraid of speaking in public.
参加你的生日聚会是我的荣幸。
It is my honor to _________________ your birthday party.
我们期望王林将来能成为一名宇航员。
We expect Wang Lin to become an astronaut _________________.