单词填空（共10小题，每小题1分，满分10分）
1.You’re not allowed to park here unless you have a ____     ___(许可证).
2. There used to be a ____    ____(混泥土) building.
3. I want to buy two second-class ____    ____(单程票) to Shanghai.
4. Most of us probably hope that we will never have to face major_______  __ (外科手术).
5. Indeed, your ____   ____(无意识的) mind is working out problems all the time.
6. Many of the earth’s plants and animals have already died out, and several other __    _____(物种)are endangered.
7. Winkles（皱纹）have crept onto my mother’s ______    ____(前额).
8. Chinese students usually start to study ______  ___(化学) in the third grade of junior middle school.
9. She was one of the _____   __(受害者) of the road accident.
10. When will the new book be _____     _____(出版)?