In the following passage, some of the words have been left out. Read the passage carefully and choose the correct answer to each question out of the four alternative and fill in the blanks.
Ernest Hemingway was (175) of America's most beloved authors. He was born in 1898. (176) World War I served (177) a volunteer ambulance driver in Italy, (178) later served in the Italian infantry. Hemingway (179) badly wounded in 1918. Hemingway's wartime experience (180) a considerable influence (181) his writing. In fact (182) of his novels focus on the need for physical and psychological strength to (183) difficulty and often violence. He was quite disillusioned (184) the war.