My grandma hadn't finished her schooling, so I wanted to know when she stopped going to school or more specifically "the grade after which she stopped going to school". Actually she completed her tenth grade.
Till what grade did you go to school?
I went to school till 10th grade. (I finished my tenth grade)
Do you think that these sentences sound natural? I made them up, but I don't know why but they sound a bit off to me. Can you please suggest something better instead?
My question is mostly about the use of "till" (not "10th") and therefore isn't like these related questions: