注意下面句子中語(yǔ)氣的不同：

　　I think that I would make a good ***** for you. 我想我可能成為貴公司的優(yōu)秀員工。

　　I am confident that my experience and references will show you that I can fulfill the particular requirements of your ***** position. 我相信我的經(jīng)驗(yàn)和別人對(duì)我的推薦可以使您充分了解我符合貴公司*****一職的需要。

　　I recently completed a course in filing at the ***** School of Business. I am competent not only in installing a filing system that will fulfill the needs of your organization, but I am also well qualified to operate it efficiently. 最近我在***********讀完*******課程，我相信不僅可以設(shè)計(jì)一套符合您的.要求檔案分類(lèi)系統(tǒng)，而且可以進(jìn)行有效的操作。

　　I feel quite certain that as a result of the course in filing which I completed at the ******** School of Business, I can install and efficiently operate a filing system for your organization. 我相信經(jīng)過(guò)我在*******學(xué)校的********課程學(xué)習(xí)之后，我能夠替貴公司設(shè)置并且操作一套檔案分類(lèi)系統(tǒng)。

　　第一句顯得語(yǔ)氣太弱，寫(xiě)信的人有點(diǎn)羞怯的樣子。第二句有特殊風(fēng)格，第三句則太過(guò)自信，第四句，作者在表示謙虛。在實(shí)際運(yùn)用中，如果你不太了解雇主的話，不卑不亢比較好。