Question

after,a,happiness,I,the,man,sense,had,of,I,old,helped 连词成句

Answer 1

after、a、happiness、I、the、man、sense、had、of、I、old、helped 连词成句为：
I had a sence of happiness after I helped the old man.
意思是：在我帮助那个老人后，我感受到了幸福。
a sense of 一种.....感觉 happiness幸福

Answer 2

after,a,happiness,I,the,man,sense,had,of,I,old,helped 连词成句。
答案是
After I helped the old man, I had a sense of happiness.
帮了那个老人后，我有种幸福感。

Answer 3

After I helped the old man, I had a sense of happiness.