--Hello, may I speak to Mr. Smith? --I'm sorry, he is out.A. but B. and C. or D. so 【查看更多】

 

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— Hello, may I speak to Mr. Smith?
— I'm sorry, _____ he is out.

[     ]

A. but
B. and
C. or
D. so

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－Hello, may I speak to Mr．Smith?

－I'm sorry, ________ he is out．

[　　]

A．but

B．and

C．or

D．so

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