A
1. who ( vì The minister: bộ trưởng, dùng who thay thế cho danh từ chỉ người)
2. where ( the spot: nơi, chốn eg: a retired spot: nơi hẻo lánh)
3, which ( the human brain: bộ não của con người)
4. why ( the reason why: lí do tại sao)
5. where ( the office: cơ quan, văn phòng)
6, whose ( whose + N (name) : sở hữu)
7. which ( the Titanic: tên bộ phim , đã được xác định à ko dùng that)
8. whom ( sau giới từ luôn whom/ which)
9. when ( april 1st chỉ thời gian)
10. whose ( whose + N: chỉ sự sở hữu)
11. which ( breed of dog: nòi giống của loài chó)
12. which ( Black Tower: tháp Blackpool, đã xác định à ko dùng that)
B
1. F --> where/ in which
2. F --> that ( mệnh đề có dấu phẩy, ko dùng that)
3. T
4. F --> whose ( daughter)
5. F --> any reason why
6. T
7. F --> who
8. T
9. F --> whom
10. F --> when
11. F --> who
12. F --> which
C
2.Prince Charles, whose wife was Prince Diana, is heir to the throne of England
3. Microsoft has a lot of power in the world of the computers that annoys some people
4. The euro, which was introduced in January 2002, replaced a number of national currencies
5. Friends, which is one of my favorite series, ran for ten years
6. Venus, which is much close to the Sun than the Earth is, is a very hot place
7. Cricket, which is played between two teams of eleven is popular in many countries around the world
8.Parts of Buckingham Place, where the queen lives, are open to the public
9. The greyhound, which can reach speeds of over 65 kilometres an hour is the fastest dog
10. 1984 was written by George Qrwell, whose real name was Eric Blair
Chúc bạn học tốt!