`I`.
1. A ( âm /θ/, còn lại âm /ð/)
2. D (âm /ɔː/, còn lại âm /ɑː/)
3. C (âm /oʊ/, còn lại âm /ʌ/)
4. D (âm /oʊ/, còn lại âm /aʊ/)
`II`.
1. D
2. B
3. C
4. A
5. B
6. A
7. B
8. C
9. B
10. A
`III`.
1. Because a robot cannot think or do things alone
2. Because they are too expensive
3. In the US, people use robots to guard some important places
4. In Japan, people use robots in factories to build cars
`IV`.
1. team
2. against
3. score
4. competitive
`V`.
1. I got a bad mark because he was lazy
2. Although it rained hard yesterday, I went to school on time
3. If we use the car all the time, we will make the air dirty
4. Sydney is the cleanest city in the world
