21.It was when we were returning home I realized what a good feeling it was to have helped someone in trouble.
Answer key
B
It was when we were returning…——2015 高考英语第 21 题答案解析
2015_省自主命题（湖南）
题目指纹
这道题真正考什么？
关键能力
单项填空
difficulty
Differentiating