43. In the author’s opinion, _____. 

（ ）54.Gina is a music teacher. Although she prefers classical music, she likes to follow the kind of music that interests the teenagers she teaches.

7.

49. ______ absorb smelly sweat easily and therefore are better at hiding body odor.

36. Dr. Aiken cut the background from the photos for the purpose of______.

24. Only after my friend came ______.

（ ）52. Bella enjoys eating out but can’t afford to spend very much at the moment as she is saving for a holiday. She has never learnt how to cook, so now might be quite a good time to find out!

63.我们真希望你昨晚没那么多工作要做,因为我们都知道你肯定会在晚会.上玩得很开心。

2.

23. If we ______ adequate preparations, the conference wouldn’t have been so successful. 

22. Not until the motorbike looked almost new ______ repairing and cleaning it.

（ ）12. The company was set up 15 years ago.