Combine these sentences using "and/ or/ but/ so"

Combine these sentences using "and/or/but/so"
1. We can go to the stadium to watch the match. We can stay at home to watch on TV
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2. The traffic was very bad. We want later than the other days.
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3. He failed all the singing competitions. He countines to practice singing for his dream.
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4. I tried my best to study. My teacher never recognise my effort