Students should pay attention ____________listening to the teachers in class.

— Attention, please. The plane has to be _____ because of the    heavy rain.— Oh, bad luck! We have to wait now. 

—What do you usually do at the weekend?—I ________ the program “If You Are The One” (非诚勿扰) with my family.

 —Driving less, walking more is good for our health. — So I’d rather ________ an hour’s walk to work than ________ driving a car.

I’m thirsty. I want to buy something _________.