
3) ____________________________________________.Illness won't exist. We'll grow new livers, kidneys, hearts,and lungs like spare parts for a car. People will live to about 130 or 150.For 2 000 years, we have tried to understand our environment.Now we'll begin to control it.| 欢迎光临 英语听力论坛 (http://bbs.tingroom.com/) | Powered by Discuz! 7.2 |