Is that car yours?Yes,it's___car.mine?my?填哪个为什么?

Is that car yours?Yes,it's___car.mine?my?填哪个为什么?
Is that car yours?Yes,it's___car.
mine?my?填哪个为什么?

Is that car yours?Yes,it's___car.mine?my?填哪个为什么?
my
mine=my car 后面已经有car了,所以选my

my 因为后面接名词CAR，MINE后不能接名词

my

my,因为mine在这里是没用的

my