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).

1. Look! The girls ______ (write) on the wall.
2. Would you like something ______ (eat)?
3. Don't ______ (stand) behind the wall!
4. I want ______ (take) some books to the classroom.
5. Lucy is running. Lily ______ (not run).
6. There ______ (be) a football and two flowers on the table.
7. Let the boy______ (watch) TV.
8. What can you ______ (see) in the picture?
9.  ______ the old woman ______ (drink) tea now?
10. You must ______ (look) after your things.

1. By the time I _____ (get) up, my brother _____ ( get, already) in the shower.
2. By the time she _____ (get) to class, the teacher _____ (start, already) teaching.
3. When she _____ (get) to school, she _____ (realize) she _____(leave) her backpack at home.
4. — _____ you ever _____ (be) late for school?
    —Yes, I have. 
    —Why _____ you late?
    —Because the bus _____ (break) down.

1. _____ (be) the green shorts yours?
2. How much _____ (be) Mary's shoes?
3. Can you _____ (take) the black hat to school ?
4. —what _____ she _____ (want)?  
    —A shirt.
5. I want _____ (take) a pair of shoes.
6. Do you have bags for _____ (sport) ?
7. Come and see for _____ (you) at Guangming Bookstore!
8. I _____ (need) a white coat and a red hat.
9. The shop only _____ (sell) girls' clothes. 
10. Peggy _____ (not have ) a nice cap