A. What activity do you do in the winter season?

I ride ski. ✔​

B.  1.She is my sister. ✔​​

    2. What is her name?

   => Corrected : The sentence is corrected grammatically. ​

    3. She is Simgi.

       Her name is Simji.

   => Corrected : The sentence is corrected grammatically. / Punctuation​​