Noboby except his parents （have) been to Beijing in the last

Noboby except his parents （have) been to Beijing in the last The son would like to have been taken to Beijing,but his fat She with his parents ____ been to the West Lake before (have （）of the students in the class have been to Beijing. we have been to the great wall with them in Beijing.（一般疑问句） Few of the children in this area have been to Beijing,_____? they went to beijing three days ago.和the have been in Beijin have you been to Beijing I have been to Beijing. 为什么My parents ( ) Beijing for ten years中间只能填have been in而不能填 Have you___been to Beijing?No,I haven't been the my parents have been to beijing before(改为一般疑问句,并作肯定回答）