77. In the past, Jim p_________ clothes made of cotton to those made of silk.

76. When Kate came into the classroom, she found a purse l______ on the ground.

75. The doctors and nurses are taking good care of the p______ from disaster areas .

74. Last night was the most e______ time I've had in a month of Sundays

73. “One World, one d_______” is the slogan(口号) of 2008 Beijing Olympic Games.

72. There was something wrong with his teeth,he decided to see a d　　　 　.

Ⅰ. 根据提示写出句中所缺单词，使句意完整正确。

71. People all know bright colors a______　 babies a lot.