fifty pence worth of trouble

with some children,small sums go a long way.这里的with能用for代替
for most of them,fifty pence is a small price to pay for a nice big bar of chocolate.这里for不能用 with或 to代替
sooner or later you'll have to pay for your carelessness.这里的pay for不能用 suffer代替.
再问： 后面两个为什么不能呢？解释一下，谢谢
再问： 后两个为什么不能呢？
再答： 语境上以原文较佳, 要取代的话, 文法上可以.
再问： she's sure to suffer for her her stubborness. sooner or later you'll have to pay for your carelessness. 这两句中的suffer for和pay for可不可以互换?
再答： 语境上以原文较佳, 要互换,有些牵强 .