Themannerinwhichatelephoneisanswe

发布时间：2020-07-25 22:54:03

The manner in which a telephone is answered gives the image of the organization, so ________ polite and pleasant when answering the telephone．A.beingB.beC.to beD.having been

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B解析考查动词的形式。此处应为祈使句。
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