紧急!看看下面这段话有语法错误么,还有就是只能用第三人称进行表述,如果有错误,希望改正,急!

紧急!看看下面这段话有语法错误么,还有就是只能用第三人称进行表述,如果有错误,希望改正,急!
According to observation, there are many differences in the following speech acts. These speech acts include: forms of addressing, apology, request, asking for permission, gratitude, agreement or disagreement, approval or disapproval, refusal, suggestion, advice, warning, compliment, invitation, greetings, partings, telephone talk, introduction, expressing concern, criticism, offer, deny, congratulation, persuasion, command, directions, instructions, recommendations, report and threat. In this essay, the author hereby just chooses some aspects to analyze the different polite language between Chinese and Western culture.