There is __________ “u” and __________ “s” in the word “student”.
Your hair is too long. Would you please _______ your hair ______?
–Who is the man ____ blue?–-My English teacher . He is strict _____ the students.
It is _________ difficult work that we can't finish it in a short time.
I still remember the village ________ I grew up.
Do you know if _______ back next week ? If he ________ back , please let me know .