“你今天共花了多长的时间滑冰?”
how long did you skate today?
（问这句话的时候,是对方早已经结束滑冰了）－－过去时
how long have you been skating today
（问这句话的时候,是对方仍在继续滑冰或刚准备要结束滑冰）－－现在完成进行时
how long did you skate today?和how long have you been skating
2个回答
相关问题
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how long have you been skating?怎么回答
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--- How long have you been here?