-Who were those people with the flag?-- A group itself the league for peace.A. cal

问题补充：

---- Who were those people with the flag?

---- A group itself the league for peace.

A. calling

B. called

C. calls

D. is called

答案：

A. calling

B. called

C. calls

D. is called

解析：calling itself the league for peace.在句中做定语修饰主语 a group