Ⅰ. 单句语法填空
1. In the past 20 years, our living conditions (condition) have been improved a lot.
2. The plant is now in danger of extinction (extinct).
3. The protection (protect) of the environment is one of the basic state policies of the Chinese government.
4. It’s time to get tough with drunk drivers.
5. A lot of small towns in this area are well worth visiting(visit).
6. He left the airport under the protection of the security guards.
7. We should do our best to save endangered(endanger) species.
8. The children talked so loudly at dining table that I had to struggle to be heard(hear).
9. We hope to build an ideal habitat for the antelopes in the world.
10. His health seems to be improving(improve) little by little.
