They are intelligent animals and can see work together as they hunt schools of s

游客2023-12-26 25

问题 They are intelligent animals and can see work together as they hunt schools of small fish.

选项 A、can be seen working
B、to be seen working
C、can be seeing work
D、to be seeing work

答案 A

解析本题重点考查被动语态的用法。and连接的是一个并列分句，其主语省略了，但从前一个分句可以看出其主语应该是animals，所以画线部分应该用被动式，表示“是人可以看见动物共同协作”。四个选项中只有A和B是正确的被动式形式，但B是一个不定式的被动语态，属于非谓语动词形式，不能作谓语，故选A。

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