单项选择题
They bought______nice house in 1996. Years later, they bought______second house.
单项选择题 The old man is in（）habit of going for（）walk along（）river every morning except that it rains.
单项选择题 Western art of（）19th century shows（）influence of（）Far East.
单项选择题 Since()beginning of photography,()inventors have tried to make) photographs that duplicate()natural colors.
