找出下句中的虚词：
One reason for the persistence of this pyramid of production is that for the past half-century, much of the world’s media culture has been defined by television and television is defined by downloading.
When their children lived far away from them, these old people felt（ ）from the world.
"The coming of age of the postwar baby boom and an entry of women in the male-dominated job market have limited the opportunities of teenagers who are already questioning the heavy personal sacrifices." 这个句子的主语是 （ ）
privilege的意思是（ ）
enterprise的意思是（ ）
jam的意思是（ ）
originate的意思是（ ）
president的意思是（ ）
prompt的意思是（ ）
paralyze的意思是（ ）
investment的意思是（ ）
immune的意思是（ ）。
disclose的意思是（ ）
例句"For example, he theorized that a judge fearful of appearing too soft on crime might be more likely to send someone to prison."中的表语有（ ）
“Now a pink slip, a bad diagnosis, or a disappearing spouse can reduce a family from solidly middle class to newly poor in a few months.” 这句话的主语是（ ）
请翻译下面的句子：
Railroads typically charge such “captive” shippers 20 to 30 percent more than they do when another railroad is competing for the business.
"Abandoning the doctrine of ‘juggling your life’ and making the alternative move into simple life brings far greater rewards than financial success and social status." 这句话的主语是（ ）
“What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing.” 这句话中做主语的有（ ）
“However, whether such a sense of fairness evolved independently in monkeys and humans, or whether it stems from the common ancestor, is, as yet, an unanswered question.” 这句话的主语是（ ）
yield的意思是（ ）