They asked me what did happen last night, but I was unable to tell them

. They asked me what did happenlast night, but I was unableto tell them.
                                                A                  B                                 C                     D
24. Air pollution, together with littering, are causing many problems in our large, industrial cities today.                                  A                           B                  C                            D
25. Nora hardly never misses an opportunity to playin the tennis tournaments.
                              A              B                        C        D