Tony is the only one of the students who _____ to europe.A have been B has been

Tony is the only one of the students who _____ to europe.A have been B has been He is the only one The only one is my The truth is only one 是什么意思 [ ]is the cat?-----It's only one. the only one for me is is only one of 和is the only one of有没有区别? Really want is usually only one ,the murderer is you The boy is my only one,he name is in,Tony,is grade,class,one,two there is only one student in the classroom .对onethere is only one student in the classroom .对one提问 10.This is the only one of the books published Tony is one of the tallest students in our class.是什么意思? 4.Tony was asked to do the job ___________(indepentdent ) as no one is available. only one is perfect There is only one bag in the room.对划线部分only one提问 There is only one T-shirt in the living room对only one提问 there is only one picture on the wall 对only one 提问