41 Old people usually _____ pay to use the bus. a) must not b) could not c) might not d) don’t have to 42 Have you ever

41. Old people usually don’t have to pay to use the bus.

42. Have you ever thought about becoming a doctor?

43. This lesson is so boring.

44. At the end of the year, the hospital going to open a new surgery.

45. Was David used to live in London?

46. Chicken with chocolate is eaten by Mexican people.

47. The hotel is closing this weekend for a wedding.

48. The Lexington Murderer was released from prison last week.

49. How long have you been studying for the exam this week?

50. If the newspaper sold more adverts they would make more money.