第四部分：填空（共三节，满分20分）
第一节：单词拼写（共5小题。每小题1分，满分5分）根据下列句子及所给汉语注释，写出空缺处各单词的正确形式。（每空只写一词）
75. He looked at her with a ______(混合) of amusement and depress.             75. __________
76. ______ (明显), I’ll have to think about your offer carefully.                            76. __________
77. Could you ______ (递送) this letter to the teachers’ office?                       77. __________
78. Old people are more ______ (可能) to suffer back problems.                           78. __________
79. As they ______ (接近) the wood, a rabbit ran out of the trees.                  79. __________