1. I gave her an extra blanket. I thought she might feel cold during the night (in case)
2. I'll get home soon. I'll ring him then (as soon as)
3. I don't care how urgent it is. I'm going to stay here all the night to finish it (however)
4. We know that car fumes make our cities dirty, on the other hard, we don't want to give up the convenience of having cars (while)
5. He stayed out of the fight. He didn't want to be hurt (so as)
6. I'll have a look in my office. She may have left a message for me on my desk (in case)
7. She may feel like doing it and she may not, but it makes no difference. The job has to be done. (whether...or not)
8. While we know that nuclear reactors do not produce smoke, we are not convinced that they are not dangerous to the environment (on the other hand)
9. The sailed across the Atlantic. This had never been done before (which)
10. This was an intersting television programme. It satisfied everybody (so...that)