ChaseDream

标题: 求教大全中的一题 [打印本页]

作者: yuanzisammi 时间: 2007-6-7 05:22
标题: 求教大全中的一题

1. A huge flying reptile that died out with the dinosaurs some 65 million years ago, the Quetzalcoatlus had a wingspan of 36 feet, believed to be the largest flying creature the world has ever seen.

a. and it is believed to have been

b. believed to be

用havebeen是为了说明过去是，现在不是么？

谢谢

作者: carolinelmf 时间: 2007-6-7 16:47
和the world has ever seen 对应

欢迎光临 ChaseDream (https://forum.chasedream.com/)