66. Nam was not able to find the right house
67. He isn't interested in getting a good job
68. I'll work this afternnon if you like
69. It took three and half hours to fly to Paris
70. It was a five-day trip
71. There is a train which leaves at 8 o'clock every morning
72. The heavy rain prevented us from enjoying the trip
73. Vinh is always forgetting his homework
74. My grandfather prefers watching TV to going out for a walk
75. Meeting friends after dinner is more interesting than playing chess