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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典型新生儿甲低的主要表现为________、________、________、________、________，常有________。