(2013·山东实验中学高三二模)—What's the matter with John? He has been sitting there for hours.—A postcard from his father ________ an attack of home­sickness in him.

Xiao Shenyang ______ the audience with his performance and humorous words.

 Since the early nineties, the trend in most businesses has been toward on-demand, always-available products and services that suit the customer’s ________ rather than the company’s.

--- Lucy seems in low spirits.--- Yes, all her efforts were ____ and no one was interested in her invention.

Most highways are lined with billboards of advertisement，which__________by passing car­drivers.