单项选择题
A．tries his best to make his guests feel comfortable B．makes his guests feel excited C．tries to avoid being naughty to his guests D．tries to avoid being foolish
A．good B．unpromising C．happy D．lucky
A．Women enjoy using umbrellas with various kinds of colors nowadays. B．The inventor of the umbrella is unknown. C．Once ordinary people had no fight to use umbrella. D．Umbrellas were popular and cheap in ancient times.