83. There have been no great ____________(变化)in the training requirements since then.

82. Many of the old customs have been ____________(代替)by the new ones.

81. English is the ____________(官方的)language of many countries in the world.

80. It was too hot. I was s____________ a lot even without doing anything at home.

79. The dead-end street was the only a____________ to her home.

78. The doctor told Mary to open her month and stick out her t____________.

77. The Chinese language c____________ of many words borrowed from other languages.

第一节　　　 单词拼写(共10小题;　 每小题1分, 满分10分)

76. They played some loud, noisy music that is u____________ to listen to.