---Who were those people with the banner?---A group itself the League for Peace.A. callin

问题补充：

---Who were those people with the banner?

---A group itself the League for Peace.

A. calling

B. calls

C. called

D. is called

答案：

(答案→)A. calling

B. calls

C. called

D. is called

解析：考查非谓语动词。“拿着旗帜的是一些什么人？”“一个自称是和平联盟的团体。”group和call是主谓关系，故用现在分词，作后置定语，相当于who call。故选A。