The word "omnipotent" in the first sentence of last paragraph means ______.
If you are very busy, how could you get the major information from the newspaper?
You could read the __ and the
______first made Mark Twain known all over the country.
When Mark Twain became a miner in the frontier region, he started to write.
Nothing is ever accomplished by a committee, ________(除非它包括三个成员),one of whom happens to be sick and another absent.
What does the author mean by saying "more challenging" in the last paragraph?