Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before your choices, Each choice in the bank is identified by a letter. Please fill the corresponding letter. You may not use any of the words in the bank more than once.Questions 1 to 10 are based on the following passage.The method for beer has changed over time. Hops (啤酒花)，for example, which give many a modem beer its bitter flavor, are a (1)_______ recent addition to the beverage. This was first mentioned in reference to brewing in the ninth century. Now, researchers have found a (2)_______ingredient in residue (残留物）from 5,000-year-old beer brewing equipment. While digging two pits at a site in the central plains of China, scientists discovered fragments from pots and vessels. The different shapes of the containers (3)_______they were used to brew, filter, and store beer. They may be ancient “beer- tools,” and the earliest (4)_______evidence of beer brewing in China, the researchers reported in the Proceedings of the National Academy of Sciences. To (5)_______that theory, the team examined the yellowish, dried (6)______inside the vessels. The majority of the grains, about 80%, were from cereal crops like barley (大麦), and about 10% were bits of roots, (7)_______lily, which would have made the beer sweeter, the scientists say. Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn't become a (8)_______food in central China until about 2,000 years ago, according to the researchers. Based on that timing, they indicate barley may have (9)_______ in the region not as food, but as (10)_______material for beer brewing.A)Arrived B) consuming C) direct D) exclusively E) including F) inform G) raw H) reachedI) relatively J) remains K)resources L) staple M) suggest N) surprising O) test