Sadly some students don't understand the i_____ of reading English every morning

Sadly some students don't understand the i_____ of reading English every morning
Sadly some students don't understand the i_____ of reading English every morning

Sadly some students don't understand the i_____ of reading English every morning
importance(重要性的意思,是important的名词形式）
翻译是：悲哀的是：一些学生并不理解每天早上读英语的重要性

importance

importance
重要性

importance