Dưới đây là các lỗi sai và cách sửa cho đúng trong đoạn văn:

1. **Câu 1:** "This girl is the most beautiful of the two daughters that he has."
- **Sửa:** "This girl is the more beautiful of the two daughters that he has."

2. **Câu 2:** "Frank plays tennis worse of all the players."
- **Sửa:** "Frank plays tennis worse than all the players."

3. **Câu 3:** "The more he tries, the more he succeeds." (Câu này đúng)

4. **Câu 4:** "She can pronounce English words more correct than she could last term."
- **Sửa:** "She can pronounce English words more correctly than she could last term."

5. **Câu 5:** "In this class, the students are talking more loudlier than the teacher."
- **Sửa:** "In this class, the students are talking more loudly than the teacher."

6. **Câu 6:** "This summer is hotter and winter than last summer."
- **Sửa:** "This summer is hotter and drier than last summer."

7. **Câu 7:** "You should practise English often to be a better speaker of English."
- **Sửa:** "You should practise English often to be a better speaker of English." (Câu này đúng)

8. **Câu 8:** "Ha Anh can now speak English more well than the last time I met him."
- **Sửa:** "Ha Anh can now speak English better than the last time I met him."

9. **Câu 9:** "She is much more intelligent than Nam does."
- **Sửa:** "She is much more intelligent than Nam."

10. **Câu 10:** "The more rich he is, the more miserable he gets."
- **Sửa:** "The richer he is, the more miserable he gets."

Hy vọng những sửa chữa này giúp bạn!