M: What are you doing?
W: I 61____ (read) a book about future. What do you think the future will be like?
M. I think life in the future will be better. What do you think 62_____it?
W: Here 63_______ (be) some answers from the book. Most people in the world 64_____ (use) “green cars” in the future, so there will be less pollution and people will live much longer.
M: That sounds 65_________ (excite). As f or space travel, I imagine, we will travel to Mars and some other planets 66 ___________ about fifty years.
W: If we don’t take good care of the earth now, our children and grandchildren will be born into a world with too much 67 _____ (pollute). There will be 68______ (few) trees and more buildings, because there will be more people.
M: I agree with you 69_______ (absolute). Things will be worse. The weather in the future will be much hotter. Human beings will have to look for another planet 70 _______(live) on.
W: So we must take measures to protect our earth now.