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题库 / Prep2007E2-SC-65
A group of paleontologists recently announced that a site in Utah has yielded fossils of some of the biggest armored dinosaurs ever found, and they are at least 25 million years older than those of any similar dinosaur type that previously was found in North America.
and they are at least 25 million years older than those of any similar dinosaur type that previously was
and that they were at least 25 million years older than any similar dinosaur type previously
and the fossils are at least 25 million years older than any similar dinosaur types that previously were
fossils that are at least 25 million years older than those of any similar dinosaur type previously
fossils at least 25 million years older than similar dinosaur types that were previously
1.they指代不清，有歧义，指paleontologists还是fossils
2.比较对象不一致 fossils are older than types错❌，必须加 older than those of any similar dinosaur type
3.B，两个宾语从句错announced that……and they were……，后句应该和前句在一个宾从中
且they were at least 25 million years older than，陈述客观事实应该用现在时are
4.逗号问题，同位语前面肯定可以加逗号，ABC中，两个并列的句子加不加逗号 不知道……
Type前有any，用单数比较好
types that were previously，定从多余，直接previously found in North America简洁
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