33 The house has been built since last year

34 We have worked here for 15 years

35 Do you mind helping me to send this letter to my boss

36 Mai asked me if I liked listening to music

37 The rain was heavy so I couldn't go to school

38 It takes me 2 hours to learn English everyday

39 He is tall enough to play volleyball

40 The boy who is playing with a hall is Ba

33. The house has been built since last year ( câu bị động thì hiện tại hoàn thành )

34. We have worked here for 15 years ( từ quá khứ sang hoàn thành )

35. Do you mind helping me to send this letter to my boss ( cấu trúc : mind + V-ing )

36. Mai asked me if I liked listening to music

37. The rain was heavy so I couldn't go to school 

38. It takes me 2 hours to learn English everyday ( cấu trúc : takes + ( me) + time + to + Vnt )

39. He is tall enough to play volleyball

40. The boy who is playing with a hall is Ba