How do you say this in English (UK)? can u guys do me a favor? at the end of an e-mail which one is the best choice ? best wishes? or ...

30 Jun 2015

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Question about English (UK)
How do you say this in English (UK)? can u guys do me a favor? at the end of an e-mail which one is the best choice ? best wishes? or with best regards? or thanks? by the way ,i report to my foreign project supervision.which one is more official and looks like more polite?thanks a lot!

Native language
English (UK)

Native language
English (UK)

Native language
English (UK)

Native language
English (UK)

Native language
Simplified Chinese (China)
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