1. My mother is (enough/ too/ so/ very) tired to cook tonight 2. They haven’t seen each other (since/ for/ at/ in ) Christmas. 3. Alexander Graham Bell invented the (washing machine/ computer/ television set/ telephone). 4. Mr Hoang is used (eat/ to eat/ to eating/ ate) no thing before going to work 5. Tim saw his friends while he (cross/ was crossing/ is crossing/ crossed) the street. 6. He asked me (if I have/ whether I have/ if I had/ whether I have had) a driving licence . 7. Cool the burn immediately (so as/ so that/ in order to/ because) to minimize tissue damage. 8. She promises she (is/ be/ has been/ will be) back in about ten minutes. 9. This project (is carried out/ will carried out / carries out/ will be carried out) next month. 10. I saw him (watering/ water/ is watering/ to water) the flowers in the garden. 11. Angkor Wat is the (large/ largest / larger/ most largest ) temple in the world. 12. In the rice – cooking festival, a fire is made in the (modern/ new/ traditional/ old time) way. 13. Hoa told me that she (is / was/ were/ had been) hungry. 14. It (sounds/ hears/ says/ listens) interesting. How does it work ? 15. It isn’t good for children (to eat/ eating/ for eating/ eat) too many sweets.