My family members are my father, my mother, my sister.
My father is a social worker.
On Sundays, I go to my father's office.

    Tom: My family is father,mother,sister.
Correct: My family members are my father, my mother, my sister.

    Tom: My father's job is social worker.
Correct: My father is a social worker.

    Tom: On Sunday, I went to my father's office.
Correct: On Sundays, I go to my father's office.

* * * NOTE * * *

Hi Tom, good job!

Thank you for doing your homework.
Please check the corrections, teacher will explain this in class.

T. Melody~