I hear you’ll have _________ one-week holiday _________ next month. Is that right?

A．a; the

B．a; /

C．an; the

D．an; /

（）指销售单位按有关规定已让用户提走实物，但尚未开具销售发票结算和登统作销售。目前这样的销售业务不允许发生。