题目内容：
根据下列材料回答第题：A．I’m free now
B．make sure
C．I’m afraid I can’t make it
D．give me your number
E．who’s calling
F．It’s very kind of you
G．You’re welcome
H．take care
Secretary: Good morning. Dr. Smith’s office.
Wang: Good morning. May I speak to Dr. Smith, please?
Secretary: He’s at a meeting just now. May I ask __56__ please?
Wang: This is Wang Xiaohong. I’m an exchange scholar from China. I’ve just arrived in the U.S., and I’d like to discuss my research plans with Dr. Smith. I had an appointment with him at 2 p.m. this afternoon, but__57__. I’d like to reschedule it.
Secretary: Why don’t you __58__ and I’ll have him get back to you as soon as possible.
Wang: Sure. It’s 965-4778.
Secretary: OK. I’ll __59__ he gets the message.
Wang: Thank you.
Secretary: __60__. Goodbye.
Wang: Goodbye.
填入（56）处的最佳答案是（）。
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