单选题 （）make the other students hear me clearly, I was encouraged to read aloud by our English teacher.

单选题 ---Your new car is nothing but a （） of money. ---I think your words are just sour grapes.

单选题 （） of the students in our class （） from the countryside of the city.

单选题 （）the challenge of advertising this event, over one million people in at least 65 countries are expected to join in the next Buy Nothing Day.

单选题 ---Our class got the first place in the 4*100 relay race! ---（）! Together we are stronger.

单选题 When father was young, he （） from morning till night.

单选题 --- I haven't finished the paper by now. ---（）.

单选题 ---Who is on duty today? ---It's me. What's up?---Look. The blackboard needs （） right now.