问题补充:
The plan just because people were unwilling to co-operate.
A. broke down
B. pulled down
C. turned down
D. put down
答案:
(答案→)A. broke down
B. pulled down
C. turned down
D. put down
解析:break down意为“中止,毁掉,压倒,停顿,倒塌”;pull down 意为“摧毁,推翻,使降低,使身体变差”;turn down 意为“拒绝,关小音量,减弱,降低”;put down 意为“放下,拒绝,镇压,削减,记下”。