标题: 1道prep07题求助 [打印本页] 作者: Emmayeli 时间: 2018-12-25 21:58 标题: 1道prep07题求助 The number of plant and animal species that humans are known to have forced to extinction in the last half millennium is over 800.
Ahumans are known to have forced to extinction
Bhumans are known as having forced to become extinct
Chumans are known for forcing to become extinct
Dare known that humans forced to become extinct
Eare known as having been forced to extinction by humans