根据句意、首字母提示或英文解释写出合适的单词。
（1）Don't play in the street. It's ____ (not safe).
（2） Your blue jeans____  (go well with) with your T-shirt very well.
（3） I'm a top student, and I have a healthy ____(the food you usually eat) and lifestyle.
（4） People usually think pigs are l____ . They say pigs do nothing but sleep and eat.
（5） We don't have e____ food for supper. Let’s buy some from the supermarket.
（6） A friend of mine is coming to v____  me this Saturday. I'm looking forward to seeing him.
（7） Every year we usually have a party to c____ Spring Festival.

I、氯化亚铜（CuCl）是一种白色粉末，不溶于乙醇，微溶于水，易溶于浓盐酸，露置在空气中迅速被氧化成碱式盐．可用于一氧化碳、乙炔等气体含量的测定．以粗铜（含Cu、Fe）为原料可制备纯净的CuCl，其流程如图1：