25 ! when larry walters was a teenager, he saw/was seeing some balloons while he did/was doing the shopping one day. he thought/was thinking about using them to fly, but he didn't try/wasn't trying the idea until twenty years later. he was asking/asked his girlfriend and a friend to tie 45 balloons to a garden chair which he was sitting/sat in. then they filled/were filling the balloons with helium. immediately, larry rose/was rising to a height of 3,600 m and he was very frightened. then he noticed that the chair went/was going towards los angeles airport. fortunately, he came/was coming down three-quarters of an hour later – before he reached the airport.
