A. CHIA ĐỘNG TỪ: 1. What you ( do ) there before you ( return ) home? ->      2. When I ( come ) to his house yesterday, his mother ( tell ) me that he ( go ) to the cinema with his friend two hours before. ->      3. He ( go ) to England after he ( study ) E  for two years. ->      4. Before they ( go ) very far, they ( find ) that they ( lose ) the way.->      5. When their father ( get ) home from work, they ( tell ) him that they already ( cook ) the dinner. ->      6. By the time he ( return ) from England, they already ( build ) a new house for him.--> 7. When Peter ( arrive ) at the cinema, the film already ( start ). ->      8. The boy ( say ) that he ( do ) all his homework before he ( go ) to bed. ->      9. The children ( begin ) to do the exercises after they ( review ) all the rules. ->      10. He ( make ) a report on the history of England after he ( read ) a lot of books about it. ->      11. They ( be ) tired lastnight because they ( play ) soccer all the afternoon yesterday. ->      12. They ( prepare ) a few months before the Games started. ->      Giúp mình với ai làm xong mình tick hết cho.