Read the following passage and choose the best answer for each blank:             In 1986, Viet Nam began to introduce sweeping liberalization in (1)___________ sectors of its previously hard-line, centrally planned, and closed economy. Referred to as doi moi, this "renovation" has produced (2)________ changes in the lives of Vietnamese farmers, workers, and their households. Agricultural production has soared. The country now (3) ______ foreign trade, investment, tourists, business people, students, and scholars. Personal incomes have increased, and Viet Nam is a new (4)_________ of the Association of South East Asian Nations (ASEAN).           In this book, Vietnamese scholars (5)________ the origins and impacts of these changes. They examine how the policy shift of doi moi has (6)_________ rural development, urban housing, household economy, and social welfare. Collaborating (7)________ Canadian scholars, they draw upon original field surveys, historical documents, and census material to study the evolution of doi moi and its implications for the future (8) of Viet Nam. Socioeconomic Renovation in Viet Nam illuminates the key questions and issues that policy advisers and decision-makers must wrestle with to (9)_________ Viet Nam's successful emergence into the global family of nations. It will (10)_________ appeal to development professionals; students and scholars in Asian studies, economics, and rural development; and businesses considering new investment in Viet Nam.     1. A. every                    B. both                    C. all                          D. lost 2. A. dramatic               B. wide                    C. possible                 D. enormous 3. A. invites                  B. offers                   C. enriches                 D. welcomes 4. A. friend                   B. member                C. partner                  D. chairman 5. A. describe               B. write                    C. think                      D. advite 6. A. battled                 B. competed             C. affected                D. caused 7. A. for                        B. about                   C. in                          D. with 8. A. exploration          B. development        C. establishment       D. contribution 9. A. enlarge                B. enable                  C. encourage            D. ensure 10. A. also                    B. too                       C. either                    D. only