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根據(jù)句意、首字母提示或漢語寫出合適的單詞。
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            (過去).
5. Visiting Shanghai World Expo, we can learn a lot of ______________(知識) 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).