可适当增加复杂句和从句的使用;衔接成分太少,文章结构欠佳;作者能较熟练地使用丰富的词汇,但请加强单词拼写的检查。
Dear Jonh , It's very kind of you for invting me to have a dinner .Ufortunately,it's a pity that I am not availiable to make it . The reason why I can't is that I'll be busy preparing a vital exam in the day after tomorrow. Too serious to fail it ,I must concerntrate on it totally this evening.And I'm qiuet sorry that breaking your plan of joy. Whatever ,I hope that you can have a good time with your family,what's more ,we might as well appiont a proper time to connect with each other on it. Yours sincerely . Li Hua.