— ______ have you been skating?
— I’ve been skating since I was seven years old.
A．How long B．How often C．How many D．How much
— ______ have you been skating?
— I’ve been skating since I was seven years old.
A．How long B．How often C．How many D．How much
A
解析 句意：－你滑冰多久了？－我从我七岁就在滑冰。A．How long多久，问时间的长度；B．How often多久一次，询问动作发生的频率；C．How many多少，问可数名词的数量；D．How much多少，问不可数名词的数量。答句：我从七岁就一直在滑冰，描述的是动作持续的时间的长度，用how long提问。故选A。