第二节 短语填空 （共5小题；每小题1分，满分5分）
71. She was not _________ _________ (意识到) his presence until she spoke to her.
72. After half a year, Xie Lei has _________ _________ (适应) well with her study in London.
73. The saleswoman has _________ _________ (为……保留) the coat for the fat lady.
74. The child would be terrified of being _________ _________ (让一个人待着) in the big house.
75. Turn the bottle _________ _________ (上下翻转) to empty it before you fill it with oil.
