Choose the best answer A, B, C or D to complete the sentences

Choose the best answer A, B, C or D to complete the sentences.
ư11. The sky is ______ here in the countryside because there are no buildings to block the view.

A. tidy                                   B. close                                       C. dense                                D. vast

12. Is living in the city _________ than living in the country?

A. more convenient              B. as convenient                         C. most convenient              D. so convenient             

13. He is surprised __________that there are 54 ethnic groups in our country.

A. to understand                   B. to study                                  C. to know                            D. find

14. The Viet (or Kinh) have______ number of people, accounting for about 86% of the population.

A. large                                  B. the large                                 C. larger                                 D. the largest                

15. ______ ethnic groups are there in Vietnam? -54

A. What                                 B. Which                                     C. How many                        D. How much

16. ________stop playing computer games and start doing the housework?

A. Why don’t you                   B. How about                            C. Would you mind              D. When did you

17. The Hmong of Sa Pa are called Black Hmong ________ their mainly black clothing.

A. because of                          B. in spite of                              C.in order to                          D. according to

18. People in rural areas live ________ than those in cities.

A. simplier                             B. more simply                           C. more simple                     D. simpler

19. The highlands of northern Vietnam are home to the 1.5 million-strong Tay, ___ minority group.

A. Vietnam’s largest                                                          B. the Vietnam’s largest         

C. a Vietnam’s largest                                                       D. the largest Vietnam

20. ________ is the Nung’s clothing? ~ Indigo.

A. What                                 B. Which group                          C. What colour                     D. Whose