6)Neil Armstrong was the first man who walked on the moon. => 7)I come from a city that is located in the southern part of the country. => 8)The children who attend that school receive a good education. => 9)The scientist who are researching the causes of cancer are making progress. => 10)They live in a house that was built in a busy center. =>

Để chuyển các câu nghi vấn trong Tiếng Anh sang câu giả định (câu mệnh đề quan hệ), ta cần thay đổi từ "who" hoặc "that" thành "that" và thêm một giới từ định vào trước danh từ trong mệnh đề quan hệ.

Ví dụ:
6) Neil Armstrong was the first man who walked on the moon.
=> Neil Armstrong was the first man that walked on the moon.

7) I come from a city that is located in the southern part of the country.
=> I come from a city that is located in the southern part of the country.

8) The children who attend that school receive a good education.
=> The children that attend that school receive a good education.

9) The scientist who are researching the causes of cancer are making progress.
=> The scientist that are researching the causes of cancer are making progress.

10) They live in a house that was built in a busy center.
=> They live in a house that was built in a busy center.

They live in a house that was built in a busy center, surrounded by shops, restaurants, and offices.

The scientists who are researching the causes of cancer are making progress by conducting experiments and studying the molecular mechanisms involved in the disease.

The children who attend that school receive a good education due to the dedicated teachers and well-equipped facilities.

I come from a city that is located in the southern part of the country, specifically in a region known for its warm climate and beautiful beaches.