问题
单项选择题
If people weren't prepared to experiment with new teaching method, thing would never change.
A．campaign
B．swerve
C．endeavor
D．manipulate
答案
参考答案：C
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。