情景交际：选择适当的句子补全对话，有两项是多余的（共5分）
Ted: Hi, Bill.   
Bill: This afternoon? What do you want to do?
Ted: We are going to have a baseball game.   
Bill: Yes, I’d love to.   I have to go to see the doctor.
Ted: See the doctor? 
Bill: I have a sore back.
Ted: I’m sorry to hear that.