Question

【题目】We have been close friends since we were at the primary school. (对划线部分提问)

________ have you been close friends?

Answer 1

【答案】How long

【解析】

句意：我们从小学起就是好朋友。

此句是现在完成时态的陈述句，对划线部分提问，就是把陈述句改为特殊疑问句，根据划线部分是“since we were at the primary school.”可知，表示“多长时间”，要用How long，故答案为How long。