26.The man is an architect We bought his house
……The man whose house we bought is an architect …………………………………………………………………………………..............

27.The scientist is famous for his research. He met you yesterday
…The scientist who met you yesterday is famous for his research. ……………………………………………………………………………………………

28.The students are from Canada. They are standing over there
…….The students who are standing over there are from Canada.…………………………………………………………………………………………

29.The river is not safe for swimming. The river is polluted
……….The river  which is polluted is not safe for swimming.………………………………………………………………………………………

30.Tom got into the car. The car was parked behind the house
………………Tom got into the car which was parked behind the house………………………………………………………………………………
31.The woman is Miss Van. She is carrying the red umbrella
………The woman who is carrying the red umbrella is Miss Van………………………………………………………………………………………
32.Is this the man? You are waiting for him
…….Is this the man who you are waiting for …………………………………………………………………………………………
33.The book was very good. I read it yesterday
……………The book which I read  yesterday was very good…………………………………………………………………………………
34.Who is the woman? We met her here yesterday
………….Who is the woman whom we met here yesterday……………………………………………………………………………………
35.The office is on the 22nd floor. I work in that office
………The office where I work is on the 22nd floor.………………………………………………………………………………………