单项选择题
The town planning commission said that their financial outlook for the next year was optimistic. They expect increased tax（）
A．efficiency B．revenues C．privileges D．validity
单项选择题 The changing image of the family on television provides （）into changing attitudes toward the family in society.
单项选择题 It is very strange but 1 had an （）that the plane would crash.
单项选择题 The basic causes are unknown, although certain conditions that may lead to cancer have been （）
