a concert next month.AThere is going to be B．There is going to have C．There will have

问题补充：

a concert next month.

A．There is going to be B．There is going to have C．There will have

答案：

解析：句意：下个月将有一场音乐会。There be句型表示某地有某物。Have表示某人有某物。故选A。