关联词语重复

Since I want to go to a good school,there fore I am trying to raise my test scores.不能在该句的主要主语和主要动词前使用连词。

句子不完整

Many students have a hard time passing all the tests to gets in to scollege.For example,my friend in high school.句子没有主要主语或主要动词，因为其实它应是一个从句。这是一个非常常见的错误，修改的方法是将两个句子连接起来。

结构不平行例

I was able to raise my TOEFL score by studying hard and I read lots of books.当使用连词将一系列的单词联接起来的时候，应当使用词性相同或同一类型的短语。

不知所云例

Many companies began using computer smouth.

段落过长，不分段主语与动词一致问题She are a good friend of mine that I has known for along time.主语和动词在数方面不一致。

不 要使用get When I got home,I got tired,so I got a book and got sin to sbed.Get太不正式，意思也过于含糊，不适合用在正式的场合。应将get改为一个更加具体的单词，如 become,receive,find,achieve,等等。

句子别扭

We heated the soupin the microwave for too long and the shape of the container changed.措辞过长或不清。换言之，句子显得滑稽可笑。