He can be as rude, unhelpful and abusive as he wants in private, but is expected to bepolite and helpful when on duty () .<br>A . iolent<br>B . simple<br>C . impolite<br>D . polite

He can be as rude, unhelpful and abusive as he wants in private, but is expected to bepolite and helpful when on duty () .
A . iolent
B . simple
C . impolite
D . polite

出自：淄博学院大学英语

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