—Who are those with the flags?—A groupitself the League for Peace.A. calledB. callsC. call

问题补充：

—Who are those with the flags?

—A groupitself the League for Peace.

A. called

B. calls

C. calling

D. is called

答案：

@@A. called@@B. calls@@(答案)C. calling@@D. is called

解析：可以用补全法做题。calling itself 作定语，修饰group, 表示主动关系，故用-ing形式，若去掉itself则用called修饰group，表示被动。本题完整的句子为：They are a group calling itself the League for Peace.