Unearthed in China , fossils of feathered dinosaurs offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds.
A.offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds
B.offer evidence more dramatic than what has yet been discovered of the close evolutionary relationship between dinosaurs and birds
C.offer more dramatic evidence of the close evolutionary relationship than any yet discovered between dinosaurs and birds
D.have offered the most dramatic evidence of the close evolutionary relationship between dinosaurs and birds
E.have offered more dramatic evidence than any that has yet been discovered of the close evolutionary relationship between dinosaurs and birds 请问这题d为什么不对呢/ 作者: ruimiss 时间: 2010-4-21 19:18
实义动词不可随便省略，D省略了A 中的discovered，意思就发生改变了。 另外，这里没有完成时的标志，不需要用完成时。