单选题 If people weren't prepared to {{U}}experiment with{{/U}} new teaching method, thing would never change.
【正确答案】 C
【答案解析】[分析] 动词辨析 experiment with表:进行试验,做试验;A.campaign参加活动,作战;B.swerve突然转向;C.endeavor尽力,努力,尝试;D.manipulate(熟练地)操作,巧妙地处理;因此 C为答案。