Here are the sentences converted from direct speech to reported speech:

61. The doctor asked the patient if he/she felt better now.

62. The son asked his father if he would come there every weekend.

63. The teacher asked the students if they were ready for the next day.

64. The tourist asked the boy if he knew the way to the post office in Chu Se.

65. The old lady asked the young boy if he could read the letter.

66. The child asked the beggar if he was very poor.

67. I asked the policeman if he knew how far it was to the station.

68. Dick asked Alice if she had any shampoo because he needed to wash his hair.

69. Nam asked Hoa if she phoned her parents often.

70. Mr. Brown asked Miss White if she had to go then.

71. They asked us if they could smoke there in that room.

72. She asked him if he had read that book.

73. Tom asked Mary if she had phoned him the day before.

74. I asked Mary if she knew how far the swimming pool was.

75. They asked us if we liked that.