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  3. A huge flying reptile that died out with the dinosaurs some 65 million years ago

A huge flying reptile that died out with the dinosaurs some 65 million years ago

游客2025-02-25  23
问题 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.
选项 A、believed to be
B、and that is believed to be
C、and it is believed to have been
D、which was, it is believed,
E、which is believed to be
答案 C
解析 由died out(灭绝)，表明这种动物曾经是最大的动物，但现在已不存在了，而A中的to be则暗示了这种动物现在还是最大的动物，这与前面的died out相矛盾，唯一只有C用了动词不定式的完成体。
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