36. Bob has never seen a movie before
37. Minh has live in Hanoi for 5 years
38. MrSmith has taught at this school since he graduated in 1995
39. Have you received any letter from your parents yet?
40. How many stories has she written so far?
41. She absents her school because of her laziness
42. I have seen the play three times because it is interesting
43. People plant trees in public areas
44. I didn’t go to school because it rained heavily yesterday
45. How Long do you study at school?
Câu 41,44,45 mình không chắc