Which sentences are frequently used for opening paragraph? (    )myq答案窝(daanwo.com)-大学生作业答案及考资分享平台

AAcknowledging receipt of a letter from the addressee, ……myq答案窝(daanwo.com)-大学生作业答案及考资分享平台

BReferring to the matter expressed in the previous letters,……myq答案窝(daanwo.com)-大学生作业答案及考资分享平台

CWe are awaiting your favorable reply.myq答案窝(daanwo.com)-大学生作业答案及考资分享平台

DWe wish you greater business volume.myq答案窝(daanwo.com)-大学生作业答案及考资分享平台

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