III. Choose the correct answer to complete each of the sentences. (có giải thích) 7. My grandfather is used to ___________ in the countryside. A. live B. lives C. lived D. living 8. My brother used to go to work ___________ bus. A. on B. to C. in D. by 9. The traffic light turns ___________, you should stop your vehicle. A. pink B. red C. yellow D. green 10. We go to the ___________ to watch a film. A. stadium B. hospital C. restaurant D. cinema 11. The person who writes the dialogues for a films is the ___________. A. director B. scriptwriter C. actress D. film maker 12. ___________is your national flag? - Red and yellow. A. What B. What colour C. Which of colour D. Which 13. How often is Mid-Autumn festival held? – It is held ___________. A. every spring B. every winter C. every year D. every two years 14. Solar energy, air and water are ___________. A. renewable B. limited C. restricted D. narrow 15. I ___________ here until he comes back. A. will be stayed B. will staying C. will stay D. will be staying