（1）It is really a ________ ________ for Grade 9 students to say goodbye to each other.
（2）In front of Grade 9 students，there is a much brighter future ________ ________ them.
（3）In the past，writing something on notebooks was an interesting way to keep the ________ ________.
（4）Nowadays things are ________ ________ different.Some students use e-notebooks instead.
（5）Some students still like to keep friends' handwriting because they ________ ________.