完成句子（共10小题，每小题1.5分，共15分）
71. He is fifteen, and is admitted to Peking University, 　　　　　　(也一样) his cousin sister. (so)
72. I have never dreamed of　　　　　　　　　　　　　　　　　　　(会有这样的机会) to study abroad free. (there)      
73. Today, we’ll discuss a number of cases                             (有些学生不能) to use the language properly. (fail)
74. 　　　　　　　　　　　　　　　　(随着时间的流逝), many occasions－birthdays, awards, graduations－were marked with Dad’s flowers. (as)
75. 　　　　　　　　　　　(无论你说什么)makes no difference to me. I won’t change my mind to go to Shanghai Expo although it’s crowded there. (say)
76. So difficult　　　　　　　　　　　　(我发现解决) the problem that I decided to ask Tom for advice. (work)
77. I supported him in time, otherwise he　　　　　　　　　　(会摔下来) the bike. (fall)
78. By the time you come here, I　　　　　　　　　　　　　(已经去) Beijing. (go)
79. Tim, you’re looking for Mary? She            (肯定去了) to the library. (must)
80. It was not until she had arrived home　　　　　　　　　　　(她记起) the appointment with the doctor. (remember)