Breakdown of Kızım, pastanın etrafına mavi kurdele bağlamış; davetliler görünce çok beğendi.
Questions & Answers about Kızım, pastanın etrafına mavi kurdele bağlamış; davetliler görünce çok beğendi.
Kızım is kız + -ım, where -ım is the 1st person singular possessive ending: my.
So:
- kız = girl / daughter
- kızım = my daughter
In this sentence, the natural reading is my daughter.
A small extra point: the comma after kızım is a little unusual if it is simply the subject. In very careful writing, many people would write Kızım pastanın etrafına... with no comma. With the comma, it can sound like a pause for emphasis, or sometimes like direct address. But here most learners will understand it as my daughter.