问题
选择题
—Who are those with the flags?
—A group________itself the League for Peace.
A．called
B．calls
C．calling
D．is called
答案
答案：C
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.