31. That building was built in 1980
32 . Games online was played by Nam last night 
33 . Soccer is played in the afternoon
34 . That book was read last month
35 . I am visited by Hoa and Lan every week 
36 . Singabore has been visited three times 
37 . TV is like watched my my pparents 
38 . I was given this book by my dad last week 
39 .French has been studied by Lan for 3 years
40 .I was visited 3 days ago 
41.This bridge has been built since May 
42.Video games is being played at the moment 
43.Her mom had been helped by Lan with doing homework
44.Soccer are being played at the stadium now
45.Yesterday , books was being read  when she came 
46.Next month, this book will be finished 
47.TV are being watched my my parents now 
48.Games online will be played ny Hai and I this evening 
49.Hoa and Lan are being helped with doing homework at the present 
50.The garden was being watered by my dad while dinner was being cooked by my mum