17. The film was so boring . ______________, An saw it from beginning to end.

   A. Therefore              B. Despite                   C. However                 D. Although

18. ____________ being frightened by the images, Lan still liked the film so much.

   A. In spite                 B. Despite                   C. Although                D. Nevertheless

19. ________________ is La Tomatina celebrated? – Every August.

 A. Where                   B. Why                       C. When                     D. Which

 20. My father liked the _________________ of that singer.

   A. perform                 B. performer                C. performance           D. performing