75.Most of the black people came from         (非洲) countries.

74.         (圣诞节) is one of the most important festivals for Westerners.   

73. Her hard work was highly        (表扬) by the boss.

72. The boy spoke in a low voice        （承认）that it was his fault.

71. Please pay more attention to your        (发音) and spelling.

70. There are     (各种各样) newspapers and magazines in the national library.

69. He is to celebrate his daughter’s         (十二岁) birthday.

68. The          (大多数)of doctors believe that smoking is harmful to health.

67. She         （讨价还价）with the trader till he sold her the fruit cheaply．

66. Don’t be frightened by the television camera. Just speak         (自然地).