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59. Air ........................ is a big problem in the city nowadays. ( pollute )
60. She likes a ........................ evening in the countryside.
61. Mr Tan teaches ........................ sciences. ( nature )
62. Disneyland is one of the famous areas of ................................ ( entertain )
63. He had no .............................. for his absence. ( explain )
64. How ........................ of you to break that cup! ( care )
65. We live in a rather rich .................................. ( neighbor )
66. They are members of an international .................................. ( organize )
67. Television is very ........................... nowadays. ( popularity )
68. It’s .................... to cross the avenue. ( dager )
69. ................................... her illness was more serious than we thought. ( fortunate )
70. Sapa is a wonderful ................................ resort in VietNam. ( mountain )
71. Most tourists like visiting ................................. villages. ( tribe )
72. There are ............................ ways of solving problem. ( variety )
73. It’s not easy to find cheap ............................. at busy times. ( accommodate )
74. Some of my ........................... are going to my birthday party. ( class )
75. We like our math teacher for his sense of ............................... ( homourous )
76. We are making ........................ for the trip to Dien Bien next week.
77. Tom is working as an .............................. to Professor Brown. ( assist )
78. We are waiting for the ............................. of his plane ( arrive )
79. Every week, there are two ........................ from Ha Noi to HCM city. ( fly )
80. There are some buses to .................................. destinations. ( south )