Select the correct active/passive form of the given sentence.
When he left school, the textbooks were put aside by him and were never reopened.
1
After he left school, he put aside his textbooks and they were never reopened.
2
He put aside his textbooks when he left school and never reopened them.
3
He put aside his textbooks when he left reopened by him.
4
He put aside his textbooks as he left school and never reopened.