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it was(subsequently)discovered that several errors had been made.(subsequent)为什么这里填副词,不能填形容词呢?能说说这个区别和用法吗?还有It was这个句型的相关用法.

题目详情
it was(subsequently)discovered that several errors had been made.(subsequent)为什么这里填副词,
不能填形容词呢?能说说这个区别和用法吗?还有It was这个句型的相关用法.
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答案和解析
除了 系动词可以接 形容词 构成 系表结构 表状态
实义动词后面不能接形容词
只能用副词修饰谓语动词,副词放实义动词前面,情态动词或助动词后面
这里 是 被动语态 it was discovered 需要用副词subsequently修饰谓语动词,副词放助动词be 后面