be used for，be used to do，be used to doing，used to do的区别
一、be used for doing sth
二、be used to do sth
三、be used to doing sth
四、used to do sth
总结与对比
图片展示
以下是相关短语辨析的图片展示，有助于更直观地理解这些短语的用法：
练习题及解析
题目：He is a good man, because he ______.
A: was used to helping others.B: is used to help others.C: is used to helping others.D: used to help others.
解析：
正确答案：D
