【题目】Hopefully, the new method will be effective, helping students to get their career plans _______.
A. at hand B. at will
C. on trial D. on track
在线课程【答案】D
【解析】考查介词短语辨析。A. at hand在手边，即将；B. at will任意，随意；C. on trial受审，试用，在实验中；D. on track走上正轨。句意：希望这个新方法会有效，能帮助学生们使得他们的职业计划走上正轨。D项符合语境。