附加题（共计20分） 第一节单词拼写（共10小题; 每小题1分, 满分10分） 77. As they had no children of their own, they a_____________ an orphan. 78. My first a___________ at a chocolate cake tasted horrible. 79. There will be an e________ of paintings in the museum next week. 80. This store has an excellent r____________ for fair dealing. 81. Something that is p___________ lasts for ever. 82. We must cut out the diseased b___________ of the tree. 83. It was a long journey, but we e_____________ arrived. 84. A student e___________ program is a program in which a student chooses to live in a foreign country to learn. 85. He did badly in the exam because he was a_________ to computer games last year. 86. With this performance, she has won her third c________________  title in the Olympics.