17. The house built of stone lasts longer than ____ built of wood.

(  )15. The customs officer believed his story finally after the letter was shown by the man. 

32. We are not sure if he will be able to ____ the shock of going bankrupt.

19. Not only ____ about the food, she also refused to pay for it.

2.

43. According to the author, why certain foods affect our moods has something to do with ____.

44. If your brain does not make enough of a certain kind of neurotransmitter, you will ____.

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

(  )52. When shopping, it is better to bring the ads with you because some items may actually not be on sale.

46. Will looking at good pictures help you learn how to decorate rooms better? Why or why not?________, because you don‘t know what to look for and why it is ________. 

(  )54. In order to help readers spend their money more reasonably on Black Friday, the author would like to share a few Black Friday tips.

41. The author thinks that ____.