Choose the word whose the underlined part is pronounced differently

----- Nội dung ảnh -----
1. A. awareness
2. A. culture
3. A. instrument
4. A. traditional
5. A. ticket
6. A. ancient
7. A. hot tea
8. A. bus stop
9. A. flying car
10. A. fire fighter
11. A. hot tea
12. A. bus stop
13. A. flying car
14. A. fire fighter
15. A. credit card

B.
- cell phone
- mother tongue
- heart attack
- phone call
- light bulb
- online game
- self-interest
- train station
- living room
- swimming pool

C.
- performance
- event
- decoration
- hero
- include
- tall boy
- white board
- pencil case
- football match
- flying car

D.
- organize
- concert
- famous
- musical
- teenager
- competition
- material
- exhibition
- finish
- psychic