Question

Tom is the only one of the students who________to Shanghai.

 A．have gone                                    B．have been

C．has been                                        D．had gone

Answer 1

　答案:　C

have gone to表示去了某地，人不在此；have been to表示去過某地，人在此處。定語從句的先行詞是the only one，故從句謂語動詞用單數；如果one前面沒有the only修飾，則students是先行詞，從句謂語動詞用復數。句意為：湯姆是這些學生中唯一去過上海的人。