单选题
After four years in the same job his enthusiasm finally ______. A. deteriorated B. dispersed C. dissipated D. drained
【正确答案】
D
【答案解析】[解析] 四个选项的意思分别是：deteriorated恶化；dispersed散开，驱散；dissipated驱散，消散，浪费；drained使流干。句意是，四年后，他对同一份工作的热情最终消失了。所以正确答案是D选项，如：It was not easy to drain the flooded mine．(排干矿坑里的积水不容易。)