He (has gone to) Shanghai on business

He (has gone to) Shanghai on business where is your father?He (has gone to) Shanghai on business It's u___ to wait for him.He's gone to Shanghai on business he has been to shanghai和he has gone to shanghai He has gone to Shanghai.(改为一般疑问句） Where is Li Lei?He Shanghai.A.has gone to B.has been to C.we He has gone either to beijing or to shanghai ,but sure _____ This is the plane on which he went to Shanghai on business. My father---------(go ) to shanghai on business. 将这个句子改为一般疑问句：He has gone to Shanghai. He has gone to Beijing He has gone to _____.