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
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
