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Themannerinwhichatelephoneisansweredgivestheimageoftheorganization,sopoliteandpleasantwhenansweringthetelephone.A.beingB.beC.tobeD.havingbeen

题目详情
The manner in which a telephone is answered gives the image of the organization, so ________ polite and pleasant when answering the telephone.
A. being
B. be
C. to be
D. having been
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答案和解析
答案B
考查动词的形式.此处应为祈使句.