问题补充：
I never expected that I would be so busy. Why can’t there be 25 hours a day?” complained Lou Ran in Hong Kong as final exams were going on.
The 18-year-old girl was Fujian Province’s _48__ scorer in last year’s college entrance examination. After leaving school, she chose the Chinese University of Hong Kong 49__ both Peking University and Tsinghus University promised her a place.
“I want to experience a more international school and social life in Hong Kong. I’m __50 in journalism, so Hong Kong will surely help widen my horizons,” Liu said.
It is about four months since Liu Ran set 51_ on Hong Kong. She missed home a lot at the beginning, because of the food and __52__problems.
“The canteen offers mostly Western or Guangdong food, but it’s convenient to cook for ourselves in our dorm if we like. People speak Cantonese and almost all classes are in English,” Liu explained.
Her English and Cantonese are now improving, but she still needs more __53_ to adapt to the new environment.
“I’m happy that I made the right 54 to study here. With a mix of the Eastern and Western__55__, there is so much to discover and learn,” she said.48. top/ highest。
答案：
(答案→)48. top/ highest。
解析：
48.从下文她既可以进北大也可以进清华，最后选择进入香港大学学习，说明这个女孩是福建省去年的高考最高分.
49.句意是“（高中）毕业后，尽管北京大学和清华大学都录取了她，但她选择了中国香港大学学习。”从语法角度看是让步关系。
50. 根据文化背景知识可知香港融合了东西文化，是个国际化的大都市。
51. foot。 set foot on…“踏上……”属于固定搭配。
52. 从下文“People speak Cantonese and almost all classes are in English.”可知，她面临的是食物和语言问题。
53. 根据语境可以知道她仍然需要时间适应新的环境。
54. 句意是“我很高兴我做出了正确的选择/决定来到这里学习”。
55.Lou Ran 在香港大学学习，她主修新闻专业。注意用现在进行时。
