单项选择题
A．To go sightseeing. B．To have meetings. C．To promote a new champagne. D．To join in a training program.
A．Surfing the net. B．Watching a talk show. C．Packing a birthday gift. D．Shopping at a jewelry store.
A．may lead to changes in social relations B．has been true of all past generations C．is viewed as a sign of their maturity D．is a result of rapid social progress