20, We often visit our friends in Bien Hoa, which is only 30 kilometers away.

21, Long Hai Beach, which we stayed in, was the most interesting town.

22, The tigers and the women whom you saw on TV yesterday were from Africa.

23, The house which my father gave Peter was an expensive and modern house.

24, The woman who lived next door felt very proud of her husband.

25, My neighbor’s fence which surrounds his house is made of wood.

26, Birthday is a day on which people get gifts from friends.

27, The Queen Elizabeth which has been built on the island is the largest ship.

28, He was the second man to be killed in this way.

29, The rules that allow public access to wilderness areas need to be considered.

30, There were some noisy people in the audience, one of whom kept interrupting the speakers.

31, The day on which Lam and Bich got married was a bright sunny Sunday.

32, That is the restaurant where we often meet each other.

33, The reason why he was absent from class yesterday was unacceptable.

34, We have decided the day when we will go to the beach.

35, The couples who live next door to them are both college professors.

36, You left the key in the office, which was very careless of you.

37, The students whom I am waiting for at the bus stop are nervous about the coming exam.

38, The city in which we are living has a population of 14 million.

39, Uncle Ho who led a very simple life is the greatest president.

40, The waiter by whom some famous businessmen was served expected a large tip.