1.have
2.wouldn't be
3.were
4.wasn't
5.didn't pass
II.
1.If I weren't had enough money,I wouldn't buy it.
2.The television was watched every night (by me).
3.A new highway is being built around the city.
4.The date of the meeting has been changed.
III.
1.would take
2.wouldn't go
3.will give
4.would have typed
5.find
IV.
1.If she paid attention to her cooking,the food would not be horrible.
2.A cartoon film was watched last night by him.
3.The computer is being used by somebody at the moment.
4.A new hospital has been built near the airport.