41.The Finnish tourist who met me lives in Helsinki

42.I know the man who is going to marry my friend 

43.The new DVD player that John bought was made in Korea

44.The flight which I wanted to travel on was fully booked

45.The teacher with whom we studied last year is Mr Pike

46.We are very interested in the problem in which has been discussed in class

47.I like standing at the window from which I can see the park 

48.She is the nurse whom we gave the flowers to

49.We are speaking to the man who was our new history teacher

50.Lung cancer is very dangerous which million of people died of

41. The tourist who lives in Helsinki are Finnish.

42.  I know the man who is going to married my friend.

43. The new DVD players that John bought was made in Korea

44. The flight which i wanted to travel was fully booked.

45.The teacher with whom studied with him last year is Mr Pake

46. The problem in which we are very interested has been dicussed in class.

47. I can see the park from which I standing at the window

48. She's the nurse that I gave flowers to her.

49. The man that we are speaking was our new history teacher.

50. Lung cancer which million of people died of it is very dangerous.