49. When can you begin to look at the successful room in a new way?Once you ________ the three guidelines.

21. Few people ____ applied for the position meet the requirements of the company.

36. According to the passage, LDRs are ____.

29. Bamboo is used ____ houses in some places.

18. ____ there is something else to discuss, I’ll declare the meeting closed.

65. 应对焦虑情绪的最好办法可能就是倾诉了，虽然有时未必会有倾听者。

(  )51. The author’s mother prefers shopping with the author’s sister because the author is slow.

3.

27. Should it rain, the crops ____. 

57. 大都市是世界最著名的博物馆之一。你真应该仔细地看看而不是走马观花。

35. Then your once healthy cell bursts open, releasing new viruses to ____ more cells.

22. Mary found ____ extremely difficult to pass the examination.