根据下列句子及所给单词的首字母，在答题纸上按题号写出各单词的完全形式（每空限填一词）。
71. Before I r________ the airport, the plane had taken off.
72. As we all know, the sun goes down from w_______.
73. I am t____________ of snacks because they’re scary.
74. I heard some f _________ from other countries would come to our school the next week.
75. I don’t like something really s________. Instead I prefer a light diet.
76. The air in the c__________ is fresher than that in the city.
77. The bank is just a________ from the bookstore.
78. You mustn’t drive the car without your driver’s l______________.
79. Sorry, I took your umbrella by m__________.
80. In winter, because of the cold weather, many students take showers o_____ a week.