57. Some language (learn) ______ often underline important words. * 58. These students need to (improvement) ______ their pronunciation. * 59. He was (pride) ______ of his achievements in the field of politics. * 60. I can do all of these exercises (easy) ______. * 61. (Tradition) ______, we visited our relatives on Tet holidays. * 62. Our classrooms are equipped with (electricity) ______ lights and fans. * 63. My new friend is quite (humor) ______. He often makes us laugh. * 64. Mr. Bell demonstrated his (invent) ______ at a lot of exhibitions. * 65. (Dangerous) ______, the baby is holding a knife in his hand. * 66. She is kind, hard working and (humor) ______. * 67. By 1877 the first telephone was in (commerce) ______ use. * 68. Bell (success) ______ demonstrated his invention to the public. * 69. The tiger wanted to see the farmer's (wise) ______. * 70. Don't waste (electrify) ______ or you have to pay an enormous bill. *