the young man has been to many places为什么是这个时态啊?

Has the foreigner been to many interesting places in Beijing He has been to many places in the USA.这里的has been He has been collecting some sand from many places.是什么时态?是现在完 The young man has already been to America.改为否定The young man The man has been to many countries ____China these years he has been to many places of i____ He has been to many places in Japan (对many places提问） the young man has been a doctor _______. The old man ----- been to many cities.A.has B.have C.is havi Man has already been to the------ 综合填空 He has been to many ( ) places in Beijing,( ) he has no the man has been dead for many years.为什么不用用died