问题
补全对话，情景问答
根据中文提示，完成对话
A: Hello.
B: Hello. 1 (可以)I speak to Mr. Smith?
A: I'm sorry ,he's on the other line. Who's calling?
B: __2 (我)is Mr. Brown, his colleague.
A: Would you hold on a while or may I take a _ 3 (口信)?
B: I'll call him__4 (稍后)，thank you. Coodbye .
A: Goodbye.
答案
1. May 2.This 3. message 4. later