The government decided to take a______action to strengthen the market management.(清华大学2007年试题)

单项选择题At first, movies were little more than amusing______pictures that appeared to move.(北京大学2009年试题)

单项选择题Before turning to writing, I spent eight years as a lawyer______about how life would be with a prominent father blazing my trail.(北京大学2009年试题)