23. If we ________ now to protect the environment, we‘ll live to regret it.

（ ）55. Dealers often try to sell you extras such as rust proofing, fabric protection, and paint protectant, or push etching your Vehicle identification Number on windows to deter thieves.

61.我们在寻找有经验的人士，他们愿为我们高绩效的组织做出贡献，并能为他们职业生涯的成功而奋斗。

38. What is the benefit of this two-way interaction?

19. ______makes the book so extraordinary is the creative imagination of the writer.

22. It was quite a long time ________ I figured out what had happened to the manager.

25. —Have you heard about the recent election?—Sure, it ________ the only thing on the news for the last three days.

（ ）12. He is going to visit some cities on his trip.

58.因为在这个城市里待过一-段时间，所以他很容易就找到了去历史博物馆的路。

34. Students usually hold a positive________towards school if their parents clearly value education.

20. I made a promise to myself______this year, my first year in high school,would be different.

24. We are confident that the environment ________ by our further efforts to reduce pollution.