The fortunes of the major political parties tend to ______ and f

The fortunes of the major political parties tend to ______ and flow over time
A、halt
B、fall
C、ebb
D、fly
【正确答案】：C
【题目解析】：主要政党的命运往往随着时间流逝而（衰落）。
A. halt 停止
B. fall 落下，跌倒

C. ebb 跌落, 减少, 衰落

D. fly 飞行