1.I enjoy (collect)collecting dolls and it becomes my pleasure.
2.We love (watch)watching new films, and we (go)will go
to watch a new Hollywood film next weekend.
3.My brother hates (do)doing the same things day after day.
4.Our uncle (play)plays badminton once a week.
5.I (collect)have collected a lot of stamps from foreign countries so
far.

51 . collecting 
52. watching ; will go 
53.doing 
54. play 
55. have collected

41. collecting
52. watching
53. doing
54. play
55. collect

51.collecting
52.watching/will go
53.doing
54.plays
55.have collected