用括号内所给的连词或引导词连接句子。
1. You don't need to hurry. There's enough time. (because)
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2. He didn't do well in his lessons. He never gave up. (although)
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3. Stay in the safe place. The shaking stops. (until)
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4. Did you see a notebook? Its cover is blue. (whose)
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5. Children have good manners. People all like them. (who)
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