Good manners may be varied（） cultural backgrounds.

一Hello，thisisStevenSmith.Nicetohearyourvoiceagain.Hi，Mr.Smith.thecoverageofyourfreightforwardingbusiness？-（）.

A.Do you know
B.Please tell me
C.I would like to know about

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-Ithinkabusstopadvertisementisaverywisechancetopromoteourproducts.-（）.

A.Our products are popular.
B.You said it.
C.I don’t like advertisement.

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