have been 和 has been的区别
问题描述:
have been 和 has been的区别
答
have been的主语是除了第三人称单数以外的人称,如I have been to Beijing many years before.They have been to Shanghai for a long time.has been 的主语是第三人称单数,如He has been to Harbin before.Shs has b...