Do you know the girl _________ is singing in the classroom?A. when B. who C. which
Our neighbor Mr. Smith used to_______ money but he never gave it back.
All the donated money should be made full use _______the homeless people in Ya'an city of Sichuan province.
Don't lose heart. Why not give yourself _______try?
- What's _______ weather like today?- It's _______ beautiful spring day!
—______? —I want to buy a dress.