choose so or because to complete the following sentence
It was our teacher's Birthday so we gave her a present
Dina enjoyed going to school because she had many friend there
Ron couldn't get his driver because he wasn't old enough
It was raining during break so we stayed in the classroom
Jodie was quiet and shy so she didn't have many friends
The student couldn't use the computer because there was a power outage
I didn't use to get good grades at school because I was lazy
I'm telling you this because you're my friend