42.After much _______ the shop owner agreed to cut down the price by 25%

41. That his only son was killed in the air crash was a _______ blow to the old man.

40.According to the recent survey, cancer is the leading cause of death among young adults in this area, ______ women.

39. Unless ____ to speak, you should remain silent at the conference.

38. The weather is not ______ hot.

37. Do it now, _____ you will be punished.

36. Mrs. Black doesn’t believe her son is able to design a digital camera, ________.

35. I can’t find my dictionary, ________?

34. Telephone messages for the manager ______ on her desk but she didn’t notice them.

33. “What a nice fire you have in your fireplace!”

　 “ During the winter I like my house ______