Since We're University Students....

according to a newspaper, we should be able to come up with words from these 9 letters. All of them must have the letter b in them somehow and have 4 or more letters. The grades are as follows:

19= good
21= great
25= excellent

there is at least one word which uses all 9 letters. Surely as university students, we can come up with at least 19. Lets try to get 25!!!

the letters are.....

L E T
T B U
R U N