The noise of the train died_____in the distance.

问题描述:

The noise of the train died_____in the distance.
A.away B.downC.outD.off
为什么?请说明原因.谢谢!

A
die away 减弱,逐渐消失
die down 逐渐虚弱
die out 消灭,死绝
die off 相继死亡