1.I haven't found him because he went to visit someone
2.He didn't answered although I was looking for him all day long
3.He succeded to fly across the ocean because he built himself a powerful machine.
4.They've been playing chess for a few hours when the clock rang and made them startle.
5. After he won the match,he got drunk of happiness
6. She as happy when i met her,because i invited her to dance