问题
单项选择题
This is Mr. Green and this is Mr. Brown.（）
A.How do you do
B.How are you
C.Fine, thank you
D.Hi, how are you getting on
答案
参考答案：A
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This is Mr. Green and this is Mr. Brown.（）
A.How do you do
B.How are you
C.Fine, thank you
D.Hi, how are you getting on
参考答案：A