【C19】A．the lonelier and weakerB．lonelier and weakerC．happier and healthierD．the happier an

A．Severe loneliness.B．Situational loneliness.C．Chronic loneliness.D．Temporary loneline

【C20】A．lonelyB．lonesomeC．aloneD．loneliness

【C19】A．the sameB．allC．entireD．like

Why is walking a better exercise to fight against loneliness？A．It takes more time than dri

Which is NOT mentioned in the passage as the reason for Americans feeling of loneliness？A．

It can be inferred from Paragraph Four thatA．the level of loneliness depends on a person"s