subordinating conjunctions

1. As soon as I got home, I played on my playstation.
    
2. When it's saturday, i'm going on a motorbike ride.

3. Before bed time, I eat dinner.   

4.even if you don't like maths, you still have to do it.    

6. I had a chocolate cake for my birthday, because I like chocolate cake. 

7.We'll have to stay in at lunch, if we make lots of noise or don't pay attention.