Rewrite these sentences using "Because"

2. Rewrite these sentences using "Because".
1. She wasn't on time for the party, so the couldn't enter the room.
2. He smoked a lot, so he died of lung cancer.
->
........
3. She doesn't know Chinese, so she can't work here.
4. She is still young, so we can't accept her.
5. She didn't find another job, so she was unemployed.
->
6. They didn't study hard, so they failed the important examination.
7. We didn't agree with him, so we left the room without a word.
->
8. His disease was injection, so he was in an isolated room.
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