1. Since Jane stayed at home, she was worried.
2. As Tom was not confident during the interview, he couldn't get the job.
3. I have to work extra hours because i want to help support my family.
4. Since he is very talented, we adore him.
5. She has to depend on us because she is an orphan.
6. I enjoy reading books because they help broaden my knowledge of the world.
7. As he is always being a liar, don't believe him.
8. Since i don't have enough materials, i haven't finish my assignment yet.
9. As it's very urgent, you must do it right now.
10. I feel attracted to her because her voice is very sweet.
Note: Because=since=as: bởi vì nhưng thông thường Because có thể đứng đầu câu lẫn giữa câu còn as, since đứng đầu câu.