1. He shut the window with such force ________ the glass broke.
                     A.which                    B.that                    C.as                     D.when
2. All her time _______ research, the scientist has no time for films.
                     A.devoted to do                                     B.is devoted to doing
              C.devoting to doing                                D.devoted to doing     
3. I ________when someone knocked at the door.
     A.am going to leave                                 B.was about to leave
C.would leave                                           D.1 am leaving