GIẢI THÍCH
Put the verbs in brackets into correct tenses
1. Yester day, I (1. spend) two hours (2. do) the homeword.
2. The thiefs (3. catch).. when the (4. leave).. the bank.
3. Two hors ago, Mrs Brown (5. have) Alice (6. take).. her son to the school.
4. How many times you (7. be) to Ho Chi Minh City?
5. The moon (8. move) around th earth.
6. Next summer, my parents wil let me (9. visit).. my grand father.
7. How about (10. go) to the zoo?
