i think it is bad manners to run __ your parents.

问题描述:

i think it is bad manners to run __ your parents.
a.off b.over c.down d.out
请解释一下这四个词语的意思

run down:撞倒; 贬低; 追捕; 查出; (使)筋疲力竭
run off:逃跑; 流掉;迅速离开
run over:复查; 超过; 在 ...上驶过; 碾过; 匆匆浏览
run out:用尽;耗尽;期满;跑出