55.What is the purpose of publishing Twain's autobiography?
A、To supplement other biographies.
B、To help readers to understand Mark Twain.
C、To introduce Mark Twain's works.
D、To expose new discoveries about Mark Twain.
II.Vocabulary and Structure(15 points) Directions:There are 15 incomplete sentences in this section.For each sentence there are four choices marked A,B,C and D.Choose one answer that best completes the sentence and blacken the corresponding letter on the Answer Sheet. 6.I asked two passers-by how to get to the new railway station,but___of them knew it.