问题
补全对话，情景问答
| 基本语法。 | |
| A: Hello, is that Bill? B: Yes, _ 1 _ A: Oh, this is Mary. B: _2 _ , Mary? A: Nothing important, I just want to borrow an English book from you, can I? B: Well, let's meet at the school gate. _ 3_ A: OK, thank you very much. B: That's all right. _ 4 _ A: No, bye-bye. B: Bye-bye.
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答案
1-4. BADC