---Do you have a ping-pong ball? --- A.Yes,I do B.Yes,I don’t. C.Yes,I am. .
She is ________ poor ________ buy that nice dress.
—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.