书面表达 : David Watt , 一家网上书店的服务经理,他在回复客户写来的一封投诉信。请按照调解信的要求,将下面方框中给出的五句话填入文中空白处,使该信内容完整。 An Adjustment Letter Dear Li Yang, 1 . I would like to apologize for the error made by our bookstore. 2 . That was caused by an unexpected malfunction( 故障 ). We understand how disappointing it can be when your expectations are not met. 3 . We have dispatched the new items. 4 . 5 , David Watt