1. Although he had a good salary, he was unappy in his job.
-> In spite of having a good salary, he was unhappy in his job.
2. Our TV station has broadcast some interesting films this week.
-> Some interesting films has been broadcast by our TV station this week
3. He gave up smoking so that he wouldn't catch lung cancer disease.
-> He gave up smoking so he didn't catch lung cancer disease.
4. He will be completely broken if nobody helps him.
-> Unless someone helps him, he will be completely broken
5. Because of the climate, people in Britain have to spend a lot of money on heating.
-> A lot of money has been to spent on heating in Britain because of the climate.