32.Do you know the man who sat next to me at Nam's birthday party last night ?
->You know the man who sat next to me at Nam's birthday party last night, don't you?
33. It take Minh 2 Hours to do his homework everyday
->Minh spends 2 hours to doing his homework everyday
34.We were late for school because of the heavy rain
->Because it rained heavily, we were late for school
35.My mother used to make us clean the house
->We used to be made to clean the house by my mother
36.It's two years since i last spoken to her
-> I haven't spoken to her for two years
37.Going swimming in the river in the summer is interesting
->It is interesting to go swimming in the river in the summer.