When she came in, she found a stronger ________ at the back of the classroom with his eyes _______ upon her.
Food prices are climbing around the world because farmers can't ____ demand for grain.
——Shall we go skating or stay at home? —— Which _____ do yourself?
___ nice, the food was sold out soon.
Who is it up ____ decide whether to go or not?
Wang Mei is one of many Chinese teenagers _____ “on the go”