这里涉及到延续与非延续性动词的用法
对于延续性动词,用 :have (has ) gone 如:Tom has finished his homework already.
对于非延续性动词,用 :have (has ) been 如:This man has been dead for about an hour.
这里涉及到延续与非延续性动词的用法
对于延续性动词,用 :have (has ) gone 如:Tom has finished his homework already.
对于非延续性动词,用 :have (has ) been 如:This man has been dead for about an hour.