单项选择题
A．fathers often persue employment at home B．many families produce goods at home for sale C．both fathers and mothers in most families are workers D．parents have to make food and necessity themselves for their daily life
A．mothers have the practice to go to work B．working mothers have no time to stay with their children at home C．mother's position in a family has been raised D．young wage-earners are economically independent
A．a food shop B．a cafe C．a restaurant D．a cafeteria(自助餐厅)