There is going to ______ a parents' meeting this evening. My father will take part in it. [ ]

A. have

B. has

C. be

D. /

饭店业竞争激烈，饭店前厅服务员必须娴熟掌握饭店的产品差异，寻找并挖掘自己的销售主题以推销差异，并将饭店的差异产品定位在客人的心中。