giup minh vs a ----- Nội dung ảnh ----- 16. The ao dai, the traditional long dress for women, has become a symbol of Vietnamese __________ and culture. A. people B. Identity C. location D. voice
17. Organic waste such as fruit and vegetables can __________ more quickly than other materials. A. decrease B. decompose C. destroy D. degrade
18. We can __________ glass jars for storing cookies, jam, or nuts. A. reduce B. reuse C. recycle D. waste
19. Since most people in Hong Kong can’t afford a car, they rely __________ public transport. A. of B. on C. with D. about
20. You forgot to turn __________ the tap in the bathroom. It’s a waste of clean water! A. on B. off C. up D. down