82．He is careful to choose a 　s　　 　word.

81．The ____ (距离) from west to east is over 5, 500 kilometres.

80．I'll leave here 　i　　 .

79．You can't go home without your teacher's 　p　　 　.

78．A postman is a man who 　d　　 　letters and parcels.

77．Mary will go to the shop to have his film 　d　　 .

根据下面句子及所给单词的首字母, 在横线上写出各单词的完全形式．

76．The students are working hard in order to pass the college 　e　 examinations.