1.Do you know whether he is on holiday or ( A.in business B.on business C.to work 2.He is a

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1.Do you know whether he is on holiday or ( A.in business B.on business C.to work 2.He is a
1.Do you know whether he is on holiday or ( A.in business B.on business C.to work 2.He is a

1.Do you know whether he is on holiday or ( A.in business B.on business C.to work 2.He is a
B on business 的意思是“出差办事,因公,因事,为了公事”

B 出差

1.( )festival do you know?Five what do you know Do you know what Do you know Facebook? do you know my how do you know Do you know Do you know? do you know 亲,Do you know? Do you know what? do you know there? do you know sex How do you know? Do you know? do you know these Do you know do you know是什么意思