根据句意及首字母或汉语提示拼写单词

问题描述:

根据句意及首字母或汉语提示拼写单词
1.Meat price rose by over 50 p____ last year.
2.As more and more families have their private cars,there are much t____ problems in China.
3.There are 60 m____ in an hour.
4.Where there is s____,there is fire.

1.percent
2.traffic
3.minutes
4.smoke