类别

解释

例句

省略错误

句子中缺少必要成分

He swimming happily in the pool.

添加错误

句子中出现不必要或不正确的词语

I was started to cry because I cut my finger.

构成错误

使用结构或词素的错误形式

The girl eated the apple.

排序错误

语序不当

Tell me what did you buy.

排序错误

要素选择错误

The government pays muchattention on pollution problems.