短文填空：用所给词的适当形式填空,使短文完整正确，每个单词限用一次。

act, need, see, pollute, long, they, become, travel, famous, university

 
What about your future? Listen to four students talking about __future.
Fang Ming: I want to be a pilot when I grow up. I ____ good eyesight and I  will have to take flying lessons. I really enjoy __ and I hope _____ the world in the future.
Tom: I want to be an engineer when I grow up. I’m going to study design and    engineering at      . My dream is to build the ____ bridge in the world.
Jack: I want to be an _____ when I grow up. I’m going to take acting lessons, singing and dancing lessons, too. I hope I can be ______ one day.
Zhang Wen: I want to be a scientist when I grow up. We know that the _____is serious now. So I will try my best to develop a new plant to make our environ- ment______good.