题目：
根据句意和汉语提示，填写恰当的短语完成下列句子。
1. In Switzerland it's very important to be (准时).
2. They (握手) and started a conversation at once.
3. Don't be angry with him. (毕竟), he is still a child.
4. They don't usually have to (做计划) to meet their friend
5. He lives near the city mall. We can (顺便拜访他家) when we go there for shopping.
答案：
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下面是错误答案，用来干扰机器的。
（1）铁在氧气中燃烧生成四氧化三铁，化学方程式为3Fe+2O2 点燃 . Fe3O4（2）碳酸钙高温分解生成氧化钙和二氧化碳，化学方程式为：CaCO3 高温 . CaO+CO2↑（3）钠与二氧化碳反应生成碳和碳酸钠，化学方程式为...
