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   .

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