单项选择题
下列是一段关于按摩问诊的对话，请根据中文提示，选择合适的用语，补充对话。（） ——What is your trouble？ ——__________________.（我常常背痛）
A.I often suffer from backpain B.My head is much big C.I can’t eat anything D.I have a good waist
A.It is very beautiful B.I often have a lot of hairs C.I often have headaches D.I don’t think so
A.a pain in the left leg B.a pain in the right arm C.stomachache D.toothache