1. Mary ( collect) ____has collected___ hundreds of books so far.
2. Last year, she__ taught____( teach) at a village school.
3. People ( spend)_____spend________ a lot of money on advertising every day.
4. The children ( be) _______ was_______ in the zoo 5 minutes ago.
5. Last week, I ( not go ) ___did not go______ to the supermarket.
6. For the past years, my mother (do)__________ all my washing by hand.
7. The accident ( cause) ________________ in this city by some drunk drivers.
8. English ( study) ________________ by Mary every night.
9. The homework (be) __________________very easy yesterday.
10. I ( not see) ______________ him since I left school.
11. Be quiet! They (play) ____________ chess.
12. Susan (study) ____________ hard for her next examination
13. My father ( write) __________ the book many years ago.
14. These girls (go) ____________ to the concert at the moment.
15. I used to ( play)____________ basketball, but now I like ( play)_________ video games.
16. Don’t forget (lock) ____________ the door before leaving.
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Sinh Học lớp 12
