2.1. Where can the article you are searching for be found? a) on page 70 b) on the 70th page c) on page 70th d) on page

2.1. Where can the article you are searching for be found? a) on page 70 b) on the 70th page c) on page 70th d) on page 70.
2.2. Approximately how many libraries exist in Great Britain? a) thousands of libraries b) thousand library c) thousand libraries d) thousandth libraries.
2.3. During that period, what proportion of the top people had attended public schools? a) two-thirds b) two-thirds c) the two-thirds d) the two-third.
2.4. Due to lack of privacy, companies suffer an estimated annual loss of how many dollars? a) four billion b) the four billion of c) four billion of d) four billions.
2.5. Prior to World War, which book by the author was the most well-known? a) the secondth.