补全对话，每空一词。 A: Hi, Mike! Could you please play ping-pong with me? B: I'm sorry, but I 1 . A: Why? B: I have to stay at home to look 2 my granny. A: 3 the matter with her? B: She said she had a cold. A: I'm sorry to 4 that. Did she go to see the doctor? B: Yes, I 5 her to the hospital this morning. A: What did the doctor 6 ? B: He said there was nothing 7 with my granny, but she has to be in bed 8 some time. A: Are you coming later? B: I will 9 I can. I have to wait until my mother comes back. A: OK. But now I have to ask Li Hua 10 . 1._____2._____3._____4._____5._____ 6._____7._____8._____9._____10._____