题目：
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)
____________________________________
_____________.
2. He didn't do well in his lessons. He never gave up. (although)
_________________________________________________.
3. Stay in the safe place. The shaking stops. (until)
_________________________________________________.
4. Did you see a notebook? Its cover is blue. (whose)
_________________________________________________?
5. Children have good manners. People all like them. (who)
__________________________________________________.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：应采取封闭电缆槽或穿电缆保护管。
B
