Question

以下英语句子有语法问题吗？

1.I am exceedingly sorry to learn of environment matter.Therefore,I am writting this letter to advocate that protecting environment.
2.I am exceedingly pleased to receive that your letter.Therefore,I am writting this letter to take you some cordial suggestions regarding english study.
3.the purpose traveled of alleviating pressure has the largest proportion,accounting for 33 percent.

Answer 1

1.I am exceedingly sorry to learn of the environmental matter.Therefore,I am writing this letter to advocate environmental protection.
2.I am exceedingly pleased to receive your letter.Therefore,I am writing this letter to offer you some cordial suggestions regarding english study.
3.the purpose of alleviating pressure has the largest proportion,accounting for 33 percent.
改好了。