（单选题）
A:Hello, David! I haven't heard from you for a long time. How have you been recently? B:（）
AThat's ok
BLong time no see
CNot bad, thank you
正确答案
答案解析
略
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（单选题）
A:Hello, I'm Susan. Nice to meet you. B:（）
AThat's ok
BLong time no see
CNot bad, thank you
（单选题）
A:Hello, I'm Susan. Nice to meet you. B:（）
