You'll never work it out by that method; you are ________ altogetherA.keeping track ofB.off the trackC.on the track ofD.around the track
网友回答
B解析考查固定短语.句意是:用那种方法你永远也解不出的,你全部做错了.keep track of保持联系;off the track想法或作法不对;on the track of未离题的;around the track围绕.