I. Choose the correct answer A,B,C or D to complete each of the following sentences

 11. Although they are poor, they still live _________.

A. happy              B. unhappy          C.happily             D.happiness

12. “I’ve passed my driving test.”     - “_________”

A. Do you?                             B. Congratulations!       C. That’s a good idea. D. It’s nice of you to say so.      

13. The ____ can know when a volcano will erupt nowadays.

A. science                       B. scientific          C. scientists                   D. scientifically

14. I had  ________to the countryside with my family last month.

A. two-days trip             B. a two-days trip          C. two-day trip    D. a two-day trip

15. My brother studied hard, ________he completed his exam successfully.

A. although                    B. as                     C. so                    D. because

16. In most factories, workers have to wear uniform _______________ work.

A. at                               B. on                    C. in                     D. out

17. We have known Bob and his wife ________________ six years ago.

A. since                          B. for                    C. from                 D. in

18. If Rachel got up earlier, she_______late.

A. weren't                       B. won't be                    C.  isn't                 D. wouldn't be

19. This house is ________ of the three.

A. the oldest                  B. older                C. oldest               D. old

20. She asked me if I ________ a laptop computer the following day.

A. buy                            B. bought             C. will buy           D. would buy

21. They have lived in Ho Chi Minh City……………… 1998.

A. since                B. for                    C. to                     D. of
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