They were waiting ___.A.on the doctor's B.at the doctor's C.

They were waiting ___.A.on the doctor's B.at the doctor's C. They were waiting ____.A on the doctor's B at the doctor's C They are waiting -----.A at the doctor B at the doctor's C. They are waiting_______.A.at the doctor B.at the doctor's C. They were at the doctor's yesterday morning.at the doctor's对 they are waiting outside the ( )office.A,doctor's B,doctors this is the doctor's waiting room.lt's full of people.they a They are at the doctor's 对at the doctor's提问. at the doctor's造句 at the doctor、at the doctor’s 、in the doctor 、 in the doctor They are (at the doctor's).括号部分提问 She's a well-known doctor,but she ___ as a cleaner at the ho