A. has worked
B. worked
C. had worked

1. By the time I got up, my father had already ____ in the shower.
2. —When I went outside, the bus had already____.
    —Oh, you're unlucky!
3. I had to really rush. I took a ____ shower, had some breakfast, and then ran off to the bus stop.
4. ____, our precious (珍貴的) records were saved from the fire.
5. I know that you made mistakes in the exam, no wonder you look ____out.

A. finished              
B. had finished          
C. finish

1. We          (paint) the house before we           (move) in.
2. That rich old man          (make) a will before he           (die).
3. They          (study) the map of the country before they         (leave).
4. The robbers          (run away) before the policemen           (arrive).
5. We          (learn) about 4000 English words by the end of last term.
6. We were surprised at what she           already         (do).
7. She          (not go) to Qingdao because she           (go) there before.
8. He said he            already         (give) the book to the teacher.
9. She told me she          (be) to Sanya three times.
10. She           (play) the guitar while her sister         (sing).

A. arrived, had rung    
B. get, has rang    
C. reached, had rang

A. did you have    
B. had you had    
C. have you had

A. where has aliens landed    
B. when aliens had landed at    
C. where aliens had landed

A. had married    
B. married to    
C. got married

A. has happened on  
B. had been happened to    
C. had happened to

A. had lose    
B. had forgotten    
C. had left