Mothers holding jobs outside the home should have ________ schedules to make it easier to care for their children.

If you want to be healthier，you have to eat________ andtake________ exercise．

How long did it ________you to solve the problem—I _______about half an hour on it.

Shall I tell John about it— No, you _______. I told him just now.

Other businesses, such as insurance companies, are more concerned with acquiring a central position so that they are ______ to the urban population.