问题描述：
Lei feng （ ）a lot of good deeds for others in his life
A haodone B did C was doing D had done
要说明为什么得到那个答案,这样我才会懂
A haodone B did C was doing D had done
要说明为什么得到那个答案,这样我才会懂
问题解答：
我来补答展开全文阅读