【单选题】My mother often _______some money _______some useless things.
【单选题】Look at those students in the reading room. Some are reading newspapers ______ are reading magazines.
【单选题】What about _____________at home?
【单选题】中国古代旅游文化发展历程中,旅游活动成为一种社会风气和旅游文化繁荣发展的时期是:
【单选题】旅游活动成为一种社会风气和旅游文化的繁荣是什么时期?