You call your mother’s sisterA. motherB. sisterC. auntD. uncle

问题补充：

You call your mother’s sister

A. mother

B. sister

C. aunt

D. uncle

答案：

A. mother

B. sister

(答案→)C. aunt

D. uncle

解析：本题的题意是你把母亲的姐妹叫姨妈，aunt表示此意，故本题选C。