56. The main aim of the letter Tony wrote to Mr. Perkins is to __________.
A. tell him to sign the contracts B. thank him for buying a new boat
C. tell about something of his company D. ask him to pay for his boat right away
54. A. like B. miss C. need D. help
53. A. happily B. especially C. quickly D. immediately
52. A. everyone B. no one C. anyone D. someone
51. A. reasons B. disadvantages C. shortcomings D. advantages
50. A. should B. will C. must D. might
49. A. Besides B. However C. Therefore D. Then
48. A. unpleasant B. wrong C. mean D. funny
47. A. problem B. doubt C. trouble D. mistake