今年一轮又一轮的寒潮席卷全国．某商场为了了解某品牌羽绒服的月销售量y（件）与月平均气温x（℃）之间的关系，随机统计了某4个月的月销售量与当月平均气温，数据如下表：

由表中数据算出线性回归方程$\stackrel{\wedge }{y}$=bx+a中的b≈﹣2．气象部门预测下个月的平均气温约为6℃，据此估计，该商场下个月毛衣的销售量的件数约为____ 

识读下图。回答下列问题。

请回答：

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.