My sister wants three pears. (对划线部分提问)

_____________________________________________

【答案】What does your sister want?

【解析】

句意：我妹妹想要三个梨。根据划线部分是three pears三个梨，问句用疑问词what什么引导，后面接一般疑问句，主语sister是名词单数，助动词用does，my变your，句意为：你妹妹想要什么？故答案为What does your sister want?