41. How often do you go to the zoo?
42. Where can we emet at 7.30?
43. Why does Bob like the comedy?
44. Why is Simon in a lot of pain now?
45. What did you feel after eating that food?
46. It is not very far from Ha Noi to Noi Bai Airport
47. Turn off all the lights every time when you leave the room.
48. I think skating is more interesting than mountain - climbing.
49. When I was ten, I began to play football.
