用all day或all the day填空:She had a rest after lunch,but she worked very hard in class ( ).

题目

用all day或all the day填空:She had a rest after lunch,but she worked very hard in class ( ).
请告诉我为什么不是另一个?

答案

all day固定短语
all the day表示具体某一天,day需要用某个从句修饰 如all the day on which he come