—Do you believe that paper is made ____ wood?—Yes, I do. And you can see that books are made ____ paper.
Tom likes playing ________ football, but his sister likes playing ________ piano.
—________ do you have PE lessons? —Three times a week.
The cookies ________ good. Could I have some more?
—Can he speak Chinese? —________.
Can we ________ in the classroom?