英语used to do

英语used to do 跪求初三英语中used to do ,be used to do,used to doing,be used to do 英语词组辨析used to do、 be used to do 、 be used to doing used to do used to doing be used to do 英语used to do 、get used to doing和get used to do的意思和用法是什么? 英语句型区分be used to do Sthused to do Sthbe used for doing Sth used to do sth. used to do用法 used to do sth get used to do 翻译used to do used to doing 一个英语问题：was used to doing sth是不是就等于used to do sth?