读对话，选择合适的单词或句子，将字母代号填写在横线上。
a. Thank you. b. Miss c. How are you? d. Goodbye. e. Fine.
: Good morning,Liu.
: Good morning, Jack.
: I'm fine. And you?
: Thanks. Goodbye.
:
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: Good morning,Liu.
: Good morning, Jack.
: I'm fine. And you?
: Thanks. Goodbye.
: 
