Mệnh đề quan hệ là mệnh đề đứng sau danh từ để để bổ nghĩa cho danh từ.

Có 2 loại mệnh đề quan hệ quan hệ là:

-Mệnh đề quan hệ xác định 

-Mệnh đề quan hệ không xác định

Phần còn lại bạn tham khảo ở đây giúp mình

https://tienganhmoingay.com/ngu-phap-tieng-anh/menh-de-quan-he/

6 They volunteer to help the victims whose houses were destroyed by a flood

7 Hue which attracts thousands of tourists every year was recognized by UNESCO as a World Heritage Site

8 He introduced me to his students most of whom were from abroad(tham khảo c8)

9 They gave me four bad tyres->tires one of which burst before I had driven four miles

10 The computer which they bought isn't powerful enough

11 Children enjoy reading the books whose coloured pictures

12. 1945 is the year when the revolution took place

13 Do you know the man about whom they are talking

tk:

6 They volunteer to help the victims whose houses were destroyed by a flood

7 Hue which attracts thousands of tourists every year was recognized by UNESCO as a World Heritage Site

8 He introduced me to his students most of whom were from abroad(tham khảo c8)

9 They gave me four bad tyres->tires one of which burst before I had driven four miles

10 The computer which they bought isn't powerful enough

11 Children enjoy reading the books whose coloured pictures

12. 1945 is the year when the revolution took place

13 Do you know the man about whom they are talking

+ Cách dùng: Where là trạng từ quan hệ chỉ nơi chốn, đứng sau danh từ chỉ nơi chốn. Where được dùng thay thế cho at/ in/ to which / there. + Ex: Ha Noi is the place where I to come. + Cách dùng: Which là đại từ quan hệ chỉ vật , đứng sau danh từ chỉ vật để làm chủ ngữ hoặc tân ngữ cho động từ đứng sau nó.

1 Yesterday we visited the factory exporting furniture

2 Linh was the only candidate to find the corect answer

Tks