Australian embryologists have found evidence that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving as a kind of snorkel.
-
Athat suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving
分析该选项
-
Bthat has suggested the elephant descended from an aquatic animal, its trunk originally evolving
分析该选项
-
Csuggesting that the elephant had descended from an aquatic animal with its trunk originally evolved
分析该选项
-
Dto suggest that the elephant had descended from an aquatic animal and its trunk originally evolved
分析该选项
-
Eto suggest that the elephant is descended from an aquatic animal and that its trunk originally evolved
分析该选项