Where is your aunt?She is at the doctor‘s.为什么用doctor’s

Where is your aunt?She is at the doctor‘s.为什么用doctor’s she had been at the doctor's for a long time为什么用doctor's WHERE IS YOUR SISTER -AT______ A:THE SMITH'S B DOCTOR'S C MR 改正错误 She’s mother is a doctor. 读文章,填英语单词Mrs Brown is very fat.She is now at the doctor's.D: the doctor's job is to help___? Tom's sister is a successful doctor,and she is good at deali at the doctor's造句 at the doctor、at the doctor’s 、in the doctor 、 in the doctor Where is Tom?You can find him at the ()(doctor). Tom's mother is a doctor.She is e_____the sick man in the ho The doctor is o___ on Jim“s mother .she is seriously ill .填什