they are going on a world tour,in which thet will perform in

They are going to go on a world tour in which they will perf And then they are going to go on a world tour in which And then they're going to go on a world tour in which they w 英语翻译第一：And then they're going to go on a world tour in which In a world,they are very c() 英语翻译They all help us to know what is going on in the world a Are they going ()a picnic ()asunny morning?AIn；in b on；in c 英语翻译they are a direct current in the brain on which faster A They are going to Hainan( )their vacation.A.on B.in C.for D. 同义句：We are going on a trip to shanghai They arrived in beiji in this w___ they learn w___ is going on in the world. In this way they learn what is going on in the world