History is the best teacher It ________ records the development path of each country and foretells the future to us

She _________ the book _________ two days ago.

I just got laid off. An awful business, you know.—_______So are you all right

Having many helpers makes a task easier and faster to complete.—I think so. _______ .

fruit is in season now—Pears and apples, ______.