1.      I                  was very tiredbecauseI                    all the day.

A.haveworked                                                         B. have been working

C.hadworked                                                           D. had beenworking

2.      Howlong                   able to drive? - Since1990.

A.could you                      B. have youbeen            C. wereyou                      D. areyou

3.      Whenshe                   thenoise, she                   down to thekitchen and                  on the lights.

A. hears;goes;turns                                                   B. heard; went;turned

C. heard; wasgoing; turned                                      D. had heard; went; hadturned

4.      JaneandI                    school in1987.

A.finish                             B.havefinished               C. finishes                        D.finished

25. Pasteur                    in the 19^thcentury.

A.wasliving                       B. lived                          C. had lived                     D. haslived

5.      When hecame,                  

A. I waswatchingTV.       B. IwatchedTV.             C. I amwatchingTV         D. I have watched TV. 27.Everyday, mysister the                   floor.

A.usually clean                  B.cleans usually             C.usually cleaned            D. usuallycleans

28.  Afterthey                   their breakfast,they                   shoppingyesterday.

A.have; go                         B. had had; go               C. had; hadgone              D. had had;went

29.  Father                  his pipewhile mother                    a magazine.

A.smoked;read                                                         B. was smoking; wasreading

C. hadsmoked;read                                                  D. smoking;reading

30.  When we came to the stadium, thematch                  

A.already begins.                                                     B. had already begun.

C.already began.                                                      D. have alreadybegun.