问题描述：
sat 文法上一道语法题
Citizens of Virginia cater their pets( as is evidenced by its )water bowls and doggie parks present throughout the neighbourhood.
a.as is evidenced by their
b.as evident in
请问为什么答案是b不是a呢
Citizens of Virginia cater their pets( as is evidenced by its )water bowls and doggie parks present throughout the neighbourhood.
a.as is evidenced by their
b.as evident in
请问为什么答案是b不是a呢
问题解答：
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