Make the sentences using a conjunction: but, and, or, so

Make the sentences using a conjunction: but, and, or, so
1. We know him. We know his friends
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2. The coat was soft. The coat was warm.
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3. It is stupid to do that. It is quite unnecessary.
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4. I wanted to go. He wanted to stay.
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5. Your arguments are strong. They don't convince me.
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6. You can go there by bus. You can go there by train.
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7. I was feeling tired. I went to bed when I got home.
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