The Running of The Bulls- Pamplona, Spain is a part ______(21)   the famous San Fermin festival -a practice involves running in front of a small group of bulls (typically a dozen) that have been let loose on a course of a town's streets. A first firework is set off at 8 a.m. to alert the runners that the corral gate is ______(22). A second firework signals that all six bulls have ______(23)  released. The third and fourth fireworks are signals that all of the herd has entered the bullring, marking the end of the event. Every year between 200 and 300 people ______(24) injured during the run ______(25) most injuries are due to falls and are not  serious. So you think you support it?

21. A. in                          B. of                                  C. at                                  D. with

22. A. to close                B. closed                         C. open                            D. opening

23. A. be                         B. been                            C. being                           D. to be

24. A. are                        B. were                            C. have been                  D. has been

25. A. so                         B. because                       C. although                      D. but