Đáp án:

12 Hoa who wanted to buy some drink took some change

13 The boys are interested in football which is a popular game all over the world

14 My classmate had so much fun at the carnival which they wanted to see again

15 We visited the monument which was built a hundred years ago

16 Minh went back home where he forgot to turn off the faucet

17 Mai who has a headache wants to drink some medicine

18 Children like to eat cake, which can cause toothache if they have too much everyday

19 Her mom, who was a cook in a restaurant, made a delicious for the family

20 The boy who went abroad to study gave his parents big hugs before he left

21, The girl whom I called was very busy on Sunday

22 The house which I used to live in was very big

23 The table whose face is old was made in 1980

24 Do you remember the day which I took you to the zoo?

25 We visited the place which Shakespeare was buried

26 The day on which students show their love to the teachers is Teacher's day

27  The house which I used to live in is on the Island

28 The boy whose father is my teacher is a famous soccer player

29  The woman whose daughter I met yesterday is a good English teacher

30 The child whose teeth causing some problem is with the dentist

12, Hoa who wanted to buy some drink took some change.

13, The boys are interested in football which is a popular game all over the world.

14, My classmate had so much fun at the carnival which they wanted to see again.

16, Minh went back home where he forgot to turn off the faucet.

17, Mai who has a headache wants to drink some medicine.

18, Children like to eat cake, which can cause toothache if they have too much everyday.

19, Her mom, who was a cook in a restaurant, made a delicious for the family.

20, The boy who went abroad to study gave his parents big hugs before he left.

21, The girl whom I called was very busy on Sunday.

22, The house which I used to live in was very big.

23, The table whose face is old was made in 1980.

24, Do you remember the day which I took you to the zoo?

25, We visited the place which Shakespeare was buried.

26, The day on which students show their love to the teachers is Teacher's day.

27, The house which I used to live in is on the Island.

28. The boy whose father is my teacher is a famous soccer player.

29, The woman whose daughter I met yesterday is a good English teacher.

30, The child whose teeth causing some problem is with the dentist.