Kelly won first place because she practiced a lot.(she practiced a lot用her hard work改寫) 請問這題要怎麼改？可以解釋嗎?

- Kelly won first place because of her hard work.

也可改為:- Kelly won first place due to her hard work.- Kelly won first place as a result of her hard work.

Kelly won first place because of her hard work------as a result of her hard work-------Adverb phrase of reason/cause---result-- manner.

改成「because she had worked very hard」

Kelly won first place because her hard work