Lily and her sister look the same. I can't tell one from_______.
I saw some _____ teachers _____ out of the office.
---There is nothing to worry about, _____?--- _____. I have prepared everything well.
Two _____ the students _____ to the opening ceremony.
---What did the policeman ask the neighbors about?--- He asked ____ between 3:00 and 4:00 yesterday afternoon.
--- I can’t stop playing computer games.---For your health and study, I am afraid you _______.