1. C
2. B
3. A ( Bạn chụp mờ quá )
4. D
IX.
1. Vinfast Automobile Company was founded in 2017 by billionaire Pham Nhat Vuong.
2. My brother said that he was working for an international bank in Ha Noi then.
3. Unless you follow the guidelines from the Ministry of Health, you may be affected by Covid-19.
4. We haven't met Nguyen Quang Hai for two months.
5. No one in my class is more intelligent than Jenifer.
6. Because of laziness, she failed the exam.