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Be sure to write to us, ______?
A. will you B. aren’t you
C. can you D. mustn’t you
Be sure to write to us, _____?
A. will you B. aren’t you C. mustn’t you D. can you
Be sure to write to us, ________?
Be sure to write to us， ?
A．will you B．aren’t you C．can you D．mustn’t you
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