根据句意、首字母提示或汉语写出合适的单词。
1. —What’s your home a_____________?
— It’s No.8 Jiaotong Road, Jinsha Town.
2. It’s very important for us to be careful when we are walking a__________ the road.
3. Our government has done something to r“white pollution”.
4. My brother often failed in Chinese exams in the (过去).
5. Visiting Shanghai World Expo, we can learn a lot of ______________(知识) about other countries.
6. Today more and more people realize the ______________ (重要性) of health.
7. In the past few years, the city has developed at very high ___________(速度).