Good weather, isn’t it? Let’s___a walk through the park.
—How often do I need to feed the dog?—It ________ food every day, or it will be hungry.
—It's difficult to get to the other side of the river.—I think a bridge ________ over the river.
Flowers_____ along the road last year.
.Pens are used for on paper.
— Do you know in ancient China?— I have no idea. But I know people once used tree leaves to make paper.