Combine these sentences using BECAUSE/ AS/ SINCE

1. Combine these sentences using BECAUSE/ AS/ SINCE:
0. I’m going to the post office. I have some postcards to send
-> I’m going to the post office because/ as/ since I have some postcards to send
1. Jane was worried. She stayed at home alone.
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2. Tom couldn’t get the job. He was not confident during the interview.
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3. I have to work extra hours. I want to help support my family.
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4. We adore him. He is very talented.
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5. She has to depend on us. She is an orphan.
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6. I enjoy reading books. They help broaden my knowledge of the world.
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7. Don’t believe him. He is always being a liar.
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8. I haven’t finished my assignment yet. I don’t have enough materials.
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9. You must do it right now. It’s very urgent.
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10. I feel attracted to her. Her voice is very sweet.
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