We had ___________ wonderful time at the party_______ other day.

A．a, the

B．a, the

C．/, on

D．/, /

顶锚杆必须逐排（）顺序施工，每排内锚杆必须由中间向两帮顺序施工。严禁采用一次性将所有钻孔打好，再一次性安装锚杆。