5.150 travel agents were invited to solve some holidap problems.
$\boxed{\text{S+were/was+VpII+(by O)+.....}}$
6.They were asked for advice about crossing the Adriatic Sea from Italy to Corfu by a tourist.
$\boxed{\text{S+were/was+VpII+...(by+O)}}$
7.Letters are collected from the postbox and are taken to the post office by a post man.
$\boxed{\text{S+be+VpII+....(by+O)}}$
