句子改错I'm glad you have made such a great progress that you can write your e-mail good Chinese.
问题描述：
句子改错I'm glad you have made such a great progress that you can write your e-mail good Chinese.
答
in good Chinese.
答
用某种语言，如楼上大家所说的介词in，但是我觉得这里还有个问题，没见有in good Chinese这种表达。这里表达的是用中文能够写好email，写好，write good不对。应该用well。
答
I'm glad you have made such a great progress that you can write your e-mail well in Chinese.
答
I'm so glad that you have made such great progress that you can write your e-mail in good Chinese.
答
在good前面加个 in ,用流利的中文~In 后接语言,表示用某种语言
还有make progress表示取得进步,那个a 要去掉!这里progress 是不可数名词!