Answer A

- Giải thích: 

B,C có từ để hỏi không hợp lý => đây là câu gián tiếp ở câu hỏi Yes/No Questions

Quay về thơi điểm nói thì tense là thì hiện tại đơn có V nguyên thể => Gián tiếp lùi 1 thì trở thành thì quá khứ đơn

Chưa biến đổi the next day, bạn xem lại nhé

1. In 1876, the telephone was first introduced by Graham Bell

2. They say that they would go to the beach the following day.

I think most people will lieve in tall apartment buildings in the future

B - D - D - B - C - D - A - C - B

some

The show was interesting but it was too long.

1. My father doesn't mind helping my mom clean the floor.
2. Mary doesn't addicted to sending snail mail to communicate with her friends.
3. If I were a doctor now I would help you check your health. 
4. At half-past eight tomorrow evening, we were holding a party in my friend's house.

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